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64results about How to "Timely troubleshooting" patented technology

Road sweeping and cleaning car electric control system based on touch screen control

The invention discloses a road sweeping and cleaning car electric control system based on touch screen control. The road sweeping and cleaning car electric control system based on the touch screen control comprises a programmable logic controller (PLC) (1) and a peripheral input and output circuit of the PLC (1), and is characterized in that the PLC (1) is connected with an operation panel (2) in cab through an RS485 or RS422 or controller area network (CAN) bus, and a touch screen controller (21) is arranged in the operation panel (2). The road sweeping and cleaning car electric control system based on the touch screen control has the advantages that the structure of the circuit is simple, the wiring difficulty is lowered, an original key switch is replaced by a touch screen, the integration degree is largely improved, the visibility and the operability are largely strengthened, the work state indication can be provided in real time, and the failure of the equipment can be resolved conveniently.
Owner:CHONGQING DIMA IND

Urban rail transit LTE-M network system and fault monitoring method

The invention discloses an urban rail transit LTE-M network system and a fault monitoring method. The system comprises an LTE network layer and a vehicle-mounted access layer, the LTE network layer comprises an A core network, a B core network, base station equipment and a combiner. Transmission data is transmitted to the combiner through the dual-core network and the base station device. The vehicle-mounted access layer comprises a TAU arranged on a train and used for data transmission between a train and a dual-core network. More than two TAUs are respectively arranged in a head carriage anda tail carriage of the train, a part of TAUs in each carriage are connected with one core network, the other part of TAUs in each carriage are connected with the other core network, and parallel datatransmission is carried out between each TAU in each carriage and the dual-core network. The method has the advantages that the structure is simple, the cost is low, the redundancy is high, single-point faults such as a combiner can be reduced, the influence on train operation under the extreme network fault working condition is reduced, and safety and reliability are achieved.
Owner:HUNAN CRRC TIMES SIGNAL & COMM CO LTD

Rainwater irrigation device

The invention discloses a rainwater irrigation device, which includes a rainwater collection device and a sprinkler irrigation device. The rainwater collection device includes a water tank, a shielding plate A and a shielding plate B; a rain sensing device is arranged on the top of the shielding plate A and the shielding plate B; The bottom of the shelter is equipped with a relay switch; the upper end of the water tank is equipped with a water level sensor A; the middle position of the water tank is equipped with a filter layer; the lower end of the water tank is equipped with a water level sensor B; the other side of the lower end of the water tank is equipped with a water outlet The water outlet is connected with an electric regulating valve through a water pipe; the other end of the electric regulating valve is connected with a water pump through a water pipe; the sprinkler irrigation device includes a humidity detector and a nozzle; the lower end of the nozzle is connected with an electric regulating valve through a water pipe; the rainwater irrigation device also includes an intelligent control Device; the present invention realizes the monitoring of the water level in the water tank by setting the water level sensor A and the water level sensor B, and prevents the occurrence of situations such as water overflow or water level being too low.
Owner:IANGSU COLLEGE OF ENG & TECH

Refrigerator detection system

The invention provides a refrigerator detection system. The refrigerator detection system comprises a refrigerator main control board, an detection chip arranged on the main control board and external testing equipment, wherein the main control board is provided with a display control board communication interface, a refrigerator is connected with a display control board through the display control board communication interface when the refrigerator works normally, and the refrigerator is connected with the external testing equipment through the display control board communication interface when the refrigerator is detected; the detection chip is used for controlling corresponding electric components in the refrigerator according to testing codes transmitted by the external testing equipment, so as to detect the electric components; the external testing equipment is connected with the display control board communication interface and is used for transmitting testing codes to the detection chip. The refrigerator detection system according to the embodiment of the invention can quickly conduct refrigerator troubleshooting and has the advantages of time saving and labor saving.
Owner:HUBEI MIDEA REFRIGERATOR CO LTD

A photovoltaic power station information analysis cloud platform and a system

The invention discloses a photovoltaic power station information analysis cloud platform and a system. The cloud platform comprises a communication management module, which is used for receiving datasent by at least one collector and storing the data into a first database according to predetermined rules. Wherein the data comprises real-time data of connected photovoltaic power stations collectedby each collector; A database middleware module, configured to acquire the real-time data from the first database and store the real-time data in a history data table of the second database as history data; The cloud service master module is configured to perform analysis according to the real-time data obtained from the first database and the historical data obtained from the second database torealize statistical analysis of each photovoltaic power station. The invention is based on the cloud deployment design, so that a small number of operation and maintenance personnel can monitor more photovoltaic power stations, and the data of the upper cloud can be compared and analyzed, and the operation and maintenance of the power station can be optimized by data accumulation.
Owner:九州能源有限公司

Insulation performance detecting system for metal sheath of power cable

InactiveCN104459438AInsulation real-time detectionEasy to detectElectrical testingPower cableTerminal equipment
The invention discloses an insulation performance detecting system for a metal sheath of a power cable. The insulation performance detecting system comprises a collection device, a signal sending device, a signal receiving device, a terminal device, a display device and an alarm device. The collection device is used for collection operating parameters of the power cable and environmental parameters. The operating parameters include the circulation parameter, the connector temperature parameter, the tension parameter and the vibration parameter. The signal sending device is used for sending the operating parameters and the environmental parameters to the signal receiving device. The signal receiving device is used for sending the operating parameters and the environmental parameters to the terminal device. The terminal device is used for judging the insulation performance of the metal sheath of the power cable and generating an alarm driving signal when the power cable has an insulation error, and is also used for driving the display device to display all the parameters and the insulation performance of the metal sheath of the power cable. The alarm driving signal is used for driving the alarm device to give a fault alarm. The insulation performance detecting system can realize real-time detection of the insulation performance of the metal sheath.
Owner:STATE GRID ZHEJIANG NINGBO FENGHUA POWER SUPPLY CO LTD +2

Method, device and equipment for detecting rotating speed fluctuation of generator, and storage medium

The embodiment of the invention provides a method, device and equipment for detecting the rotating speed fluctuation of a generator, and a storage medium. The method for detecting the rotating speed fluctuation of the generator comprises the following steps: acquiring rotating speed data of the generator in an appointed time range; extracting the maximum rotating speed value envelope line and theminimum rotating speed value envelope line according to the rotating speed data of the generator; and according to the maximum rotating speed value envelope line and the minimum rotating speed value envelope line, determining whether the rotating speed fluctuation of the generator within the appointed time range reaches an alarm condition or not. According to the embodiment of the invention, the method can achieve the quick and accurate recognition of the abnormal condition of the rotating speed fluctuation of the generator, can achieve the accurate recognition of the fault of the generator based on the abnormal condition, provides an accurate and effective data basis for a worker, and enables the worker to timely take targeted measures to carry out the further troubleshooting or instrument maintenance.
Owner:XINJIANG GOLDWIND SCI & TECH

Fault detection method and system of battery pack

The invention discloses a fault detection method and system of a battery pack. The fault detection method includes the following steps that S1, the temperature values of cores are detected through anoptical fiber detector; S2, a controller judges whether the temperature values are within a preset temperature range or not, and if yes, alarm information is generated. Temperature data of each core is acquired, the states of all the battery cores can be accurately reflected, battery faults are checked in time, and battery short circuits and potential safety hazards such as personnel electric shocks and fire are avoided.
Owner:AULTON NEW ENERGY AUTOMOTIVE TECHNOLOGY GROUP +1

Battery heating system detection method and device, vehicle and storage medium

The invention provides a battery heating system detection method and device, a vehicle and a storage medium. The battery heating system detection method comprises the following steps of: at a first moment when a battery pack is in a heating state, acquiring a first temperature value of a single battery with the highest temperature in the battery pack; acquiring a second temperature value of the single battery with the highest temperature in the battery pack at a second moment which is spaced from the first moment by preset duration; according to the first temperature value and the second temperature value, determining a temperature change parameter value of the battery pack within the preset duration; and determining whether the heating performance of a battery heating system is normal or not according to a magnitude relationship between the temperature change parameter value and a first preset threshold value. According to the battery heating system detection method, whether the heating performance of the battery heating system is normal or not is determined by monitoring the temperature value of the battery pack in the heating process in real time, the performance problem of the heating system can be found in the first time, related workers can remove faults of the battery heating system in time, and therefore it is guaranteed that the battery pack is safely used in the low-temperature environment.
Owner:GUANGZHOU CHENGXING ZHIDONG AUTOMOTIVE TECH CO LTD +1

Fault detection method and device and photovoltaic power generation system

The invention provides a fault detection method, a fault detection device and a photovoltaic power generation system, which are used for improving the fault detection efficiency of photovoltaic modules and reducing the detection cost. The method comprises the steps that a power station management system controls a to-be-detected photovoltaic module to be in a target state through an inverter connected with the to-be-detected photovoltaic module according to a preset photovoltaic module sequence, and controlling a mobile image collection terminal to collect image data of the to-be-detected photovoltaic module when the to-be-detected photovoltaic module is determined to be in the target state; the image data is used for detecting the fault state of the to-be-detected photovoltaic module; when the power station management system determines that the mobile image collection terminal acquires the image data of the to-be-detected photovoltaic module this time, the power station management system continues to control a to-be-detected photovoltaic module next time to be in a target state through the inverter connected with the to-be-detected photovoltaic module next time according to the preset photovoltaic module sequence until the image data of all the to-be-detected photovoltaic modules is collected.
Owner:HUAWEI DIGITAL POWER TECH CO LTD +1

Online service availability detection method and device and computer device

The invention provides an online service availability detection method and device. The method comprises the following steps: obtaining IP addresses of servers mapped by a public network domain name ofan online service; calling an RESTfull API interface service of an HTTP protocol through an intranet domain name of the online service, accessing all the servers one by one, and sequentially bindingthe intranet domain name and the IP addresses of all the servers; and obtaining a response result of each server to the RESTfull API interface, and judging the availability of each server according tothe response result. According to the method, the availability of the online service can be monitored, the server with abnormity can be detected, a developer can perform fault maintenance on the abnormal server in time, the provisionability of the current online service can be maintained, and the outside still can access the online service through the public network domain name.
Owner:GUANGZHOU HUADUO NETWORK TECH

Dump truck lock hook misoperation prevention control circuit and device and dump truck

The invention discloses a dump truck lock hook misoperation prevention control circuit and a device and a dump truck, and relates to the technical field of vehicles. The dump truck lock hook misoperation prevention control circuit comprises a latch hook travel switch module, a buzzer and a control module, the latch hook travel switch module receives a lifting signal, generates a closing signal according to the lifting signal when the latch hook is in a working state and sends the closing signal to the control module, and the control module receives the closing signal, controls carriage liftingstopping according to the closing signal; the latch hook travel switch module generates an alarm signal according to the lifting signal and sends the alarm signal to the buzzer when the latch hook isin a working state, the buzzer receives the alarm signal and gives a latch hook misoperation alarm according to the alarm signal, and when the latch hook is unloaded, carriage lifting is stopped automatically. The accident that a rear door of the carriage is damaged or the whole dump truck overturns is avoided, and the buzzer gives an alarm to remind a user of troubleshooting in time, so that theworking efficiency of the dump truck is improved.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD

Detecting kit capable of simultaneously detecting 6 aquatic product pathogenic bacteria such as pseudomonas aeruginosa, etc

The invention discloses a detecting kit capable of fast, simply and simultaneously detecting 6 aquatic product pathogenic bacteria such as the pseudomonas aeruginosa and the like. The kit comprises an oxidase test paper, a hydrogen sulfide culture medium, a halophilic identifying reagent, an ortho-nitrophenol beta-D-galactoside culture medium, a pectinose culture medium, a lactobiose culture medium, saccharose culture medium, a glucose culture medium, a mannose culture medium, a cellobiose culture medium, a dextrose oxidation and fermentation identifying reagent, an arginine bi-hydrolytic enzyme identifying reagent, an ornithine identifying reagent, a lysine identifying reagent, an amino acid decarboxylation identifying reagent and an indol identifying reagent. The kit has simple reagent composition and preparation method and use method, has low cost, does not need expensive apparatuses and operators with mature technology, compared with a bacterium fast automatic identifying system and a detecting technology based on the nucleic acid. The detecting kit is suitable for initially detecting the normal pathogenic bacteria of aquatic animals, is particularly suitable for the use of aquatic product popularization staff at the production line, and immediately excludes the difficulty and the anxiety for fishing peasants.
Owner:PEARL RIVER FISHERY RES INST CHINESE ACAD OF FISHERY SCI

Detection method and control system for detecting tightness of engine air cylinder as well as engine system

The invention discloses a detection method and a control system for detecting the tightness of an engine air cylinder as well as an engine system. The method comprises the following steps of: firstly, obtaining an engine real-time rotating speed signal and a crank real-time rotating angle signal; secondly, selecting a first crank rotation angle a1 and a second crank rotation angle a2 and selecting engine rotating speeds b1 and b2 corresponding to two different crank rotating angles within the same period of crank rotation according to the real-time signals, and calculating an absolute value of b1-b2 so as to further judge whether the absolute value of a difference value between the absolute value of b1-b2 and a rotating speed standard value b of an internal engine is more than a pre-set standard value C or not; and finally, sending a corresponding display instruction according to a judging result. With the adoption of the detecting method, the detection of the tightness of the air cylinder can be realized under an engine operation state. Therefore, an operator is good for knowing about an operation condition of the air cylinder in real time; the engine can be prevented from being operated under a working condition of low tightness; and the use efficiency of the engine can be improved and the service life of the other parts can be prolonged.
Owner:WEICHAI POWER CO LTD

Intelligent traffic signal control system

The invention discloses an intelligent traffic signal control system. The intelligent traffic signal control system comprises a signal control platform, a signal lamp terminal and a police intelligentterminal, wherein the signal lamp terminal comprises a control gateway and a display device; the control gateway reports state information of the signal lamp terminal to the signal control platform,receives a traffic signal timing scheme issued by the signal control platform, and drives the display device to display traffic signals; the police intelligent terminal takes over the signal lamp terminal through the signal control platform; and the signal control platform receives registration of the signal lamp terminal and the police intelligent terminal, issues the traffic signal timing schemeto the signal lamp terminal, or receives a taking-over request of the police intelligent terminal, so that the police intelligent terminal takes over the signal lamp terminal. According to the intelligent traffic signal control system, the signal lamp terminal and the signal control platform are in two-way communication, and the signal control platform timely masters the traffic signal conditionand the road condition of an intersection and performs real-time intervention.
Owner:ZHEJIANG UNIVIEW TECH CO LTD

Airplane part fault disposal method about maintenance external field

The invention provides an airplane part fault disposal method about a maintenance external field, and belongs to the technical field of computers. According to the method, based on a military flight big data "cloud-end" technology, a fault diagnosis case library and a fault disposal plan library are automatically created in a cloud end of a system; fault data is subjected to summary analysis at the cloud end; and through specific fault phenomena, in combination with comprehensive analysis of theoretical service lives of airplane parts, reliability data, index data and the like stored in the cloud end, a terminal of the system judges the function attenuation degrees of the airplane parts, and quickly gives out specific fault disposal methods and accurate airplane part replacement opportunities. By applying the method, automatic optimal fault disposal strategy and application mechanism are provided for a user while real-time disposal of airplane part faults of a military airplane is guaranteed.
Owner:SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD

Remote monitoring system for fuel cell standby power supply

The invention relates to a remote monitoring system for a fuel cell standby power supply. The remote monitoring system comprises a server, a gateway, a DTU, a remote data terminal, the fuel cell standby power supply, a sensor, a mobile phone client side and an intermediary service side. The fuel cell standby power supply is connected with the sensor. The sensor is connected with the DTU. The DTU is wirelessly connected with the remote data terminal. The remote data terminal is wirelessly connected with the gateway through GPRS. The gateway is wirelessly connected with the server through ITERNET. The server is wirelessly connected with the mobile phone client side through CDMA. The mobile phone client side is connected with a telecommunication network of the China Telecom through the intermediary service side. The telecommunication network of the China Telecom is wirelessly connected with a mobile phone through an EVDO network. The remote monitoring system for the fuel cell standby power supply brings convenience to monitoring and is practical.
Owner:FORESIGHT SHANGHAI ENERGY TECH

Scenic area power distribution operation and maintenance system and user side

The invention discloses a scenic area power distribution operation and maintenance system. The system comprises power distribution boxes, a maintenance station, a passenger flow information acquisition subsystem, an operation and maintenance management subsystem, a power distribution box management subsystem, a maintenance station management subsystem, a power facility management subsystem and a fault management subsystem. The power distribution boxes with independent power facility monitoring functions are arranged in a distributed mode according to electric power risk characteristics of electric power facilities in a scenic area, the monitoring strategy of each power distribution box is closely related to passenger flow data and power facility characteristics, the monitoring strategy ofeach power distribution box is adjusted in time according to passenger flow information, the effectiveness of collected data is improved, and then the monitoring effect is improved. The passenger flowdistribution characteristics and the estimated use state of the electric power facilities are combined, maintenance personnel or the maintenance station is reasonably configured, so the monitoring and troubleshooting cost is reduced as much as possible on the premise that the monitoring and troubleshooting efficiency is ensured.
Owner:苏州艾尼斯特电气科技有限公司

Power distribution system based on dynamic and static maintenance stations and configuration method thereof

The invention discloses a power distribution system based on dynamic and static maintenance stations. The power distribution system comprises power distribution boxes, maintenance stations and passenger flow acquisition devices which are distributed in a scenic spot, and a management computer arranged in a monitoring center, wherein the maintenance stations comprise a static maintenance station and a dynamic maintenance station, and each maintenance station has a corresponding relationship with the plurality of power distribution boxes; the dynamic maintenance station receives and analyzes inspection strategies sent by the management computer, inspection is carried out according to inspection routes contained in the inspection strategies, and in the inspection process, the distribution boxnumber corresponding to the dynamic maintenance station changes in real time according to the position of the dynamic maintenance station. According to the invention, the monitoring strategy of eachpower distribution box can be adjusted in time according to the power risk characteristics and the real-time passenger flow information of power facilities in the scenic spot, the effectiveness of theacquired data is improved, and the monitoring effect is further improved; static and dynamic maintenance stations are reasonably configured by combining distribution characteristics and power risk characteristics of power facilities in a scenic spot, and monitoring and maintenance costs are reduced as much as possible while ensuring monitoring and maintenance effects.
Owner:JIANGSU HNDER ELECTRIC

EOL detection method of EMS and EMS offline detection method

The invention discloses an EMS fault detection method in EOL and an EMS offline detection method, and relates to the field of vehicle detection. The EOL detection method of the EMS comprises the steps that after the part number of the EMS is read and compared to be consistent with a preset reference part number, current and historical fault codes of the EMS are read; if a specified fault code is read, current snapshot data is read and sent to people for maintenance, wherein the snapshot data comprises fault generation time and vehicle state data at the time; and if a fault code is not read or a specified fault code is not read, the EMS is notified to clear the fault code, the current fault code of the EMS is read after the fault code is cleared, if the current fault code is not read, the EOL is detected to be qualified, and if the current fault code is read, data is sent to people for maintenance, wherein the first bit of the specified fault code is a P-series fault code, and the specified fault code is related to an engine emission system. Fault codes can be detected in time, and faults are prevented from flowing to the market.
Owner:DONGFENG MOTOR GRP

Video optical transmitter and receiver and detecting method for video optical transmitter and receiver

The invention provides a video optical transmitter and receiver which comprises an optical transmitter, an optical receiver, a fault indicating module and a fault detecting module, wherein the fault detecting module comprises a communication fault detecting module; the communication fault detecting module is used for detecting if the video optical transmitter and receiver, to which the fault detecting module belongs, and the last video optical transmitter and receiver connected with the video optical transmitter and receiver are normally communicated; and when the video optical transmitter and receiver and the last video optical transmitter and receiver connected with the video optical transmitter and receiver are abnormally communicated, the fault indicating module is controlled to indicate the fault. The video optical transmitter and receiver in fault is detected by the fault detecting module in the video optical transmitter and receiver provided by the invention. No professional technician is required for detecting and maintaining on the site by using special test equipment or disassembling the equipment which is confirmed as being problematic by the professional technician and sending to a manufacturer for detecting, so that the fault is timely eliminated, the influence on the use of the video optical transmitter and receiver is avoided while the maintenance cost is saved.
Owner:CHENGDU YINGDESI NETWORK TECH

Boiler monitoring method and device based on internet of things

The invention discloses a boiler monitoring method and device based on internet of things. The method is applied to the boiler monitoring device and specifically comprises the steps that after primary deoxygenation is carried out on boil supply water, the primary dissolved oxygen in the boiler supply water is detected after primary deoxygenation is carried out; when the primary dissolved oxygen is smaller than the limited dissolved oxygen, the boiler supply water obtained after primary deoxygenation is carried out is controlled to be directly conveyed to a feed pump; when the primary dissolved oxygen is not smaller than the limited dissolved oxygen, secondary deoxygenation is carried out on the boiler supply water obtained after primary deoxygenation is carried out, and the boiler supply water obtained after secondary deoxygenation is carried out is controlled to be conveyed to the feed pump. By means of the method, the boiler deoxygenation effect can be enhanced, the service life of the boiler is prolonged, risks of accidents of a boiler are reduced, and life and property safety of people is ensured.
Owner:YUNNAN SINOTECH IOT TECH

Interactive touch type remote controller and remote control method thereof

Disclosed is an interactive touch remote control apparatus which comprises: a signal sending key for emitting a signal for verifying device; a device distinguishing data storage unit in a target electronic device control circuit for storing pre-setting device codes of the electronic device itself.
Owner:GETAC TECH CORP

Confluence mechanism on beverage back-end secondary packaging line and intelligent control method of confluence mechanism

The invention discloses a converging mechanism on a beverage back-end secondary packaging line and an intelligent control method thereof.The converging mechanism comprises a four-channel separation conveying mechanism, a channel changing mechanism, a double-channel conveying mechanism, a first sensor, a second sensor, a third sensor, an emergency stop switch, an alarm, a controller and a rack; the intelligent control method of the confluence mechanism is realized based on the confluence mechanism and comprises a lane changing control method, a replenishment control method and a card package sudden stop alarm method. Automatic counting and intelligent lane changing can be achieved, confluence distribution is more intelligent and more reasonable, and channel congestion is avoided; the card bag automatically stops and gives an alarm, and faults are removed in time; products are pulled open in a differential mode, counting is convenient, and bag jamming is avoided; the rubber covered roller can reduce collision energy, and product damage caused by collision is avoided; the small-pitch ball mesh belt is used for conveying, the pitch of the mesh belt is small, steering of products can be avoided, the mesh belt is covered with balls, and product scratching in the product stacking process is avoided.
Owner:北京永创通达机械设备有限公司

Integrated measurement and control system for temperature and arc light

InactiveCN103022971AEnhance comprehensive detection capabilitiesPerfect fault detection systemEmergency protective arrangements for automatic disconnectionEngineeringControl system
The invention discloses an integrated measurement and control system for temperature and arc light and mainly solves the problem that absence of reliable protection equipment in medium- and low-voltage power supply system in the prior art causes heavy life and property loss to people in case of accidents. The integrated measurement and control system for temperature and arc light comprises a master control unit, an online thermodetector, an arc light sensor, and a wireless temperature sensor, wherein the online thermodetector is connected with the master control unit, an output end of the arc light sensor is connected with the master control unit, and an output end of the wireless temperature sensor is connected with the online thermodetector. The integrated measurement and control system for temperature and arc light effectively protects the medium- and low-voltage power supply systems and has high practical value and promotion value.
Owner:成都星宇融科电力电子股份有限公司

Power distribution system suitable for scenic spot and configuration method thereof

The invention discloses a power distribution system in a scenic spot. The power distribution system comprises power distribution boxes, maintenance stations and a passenger flow acquisition device which are distributed in the scenic spot, and a management computer arranged in a monitoring center. The maintenance stations have a corresponding relationship with the plurality of distribution boxes. Amonitoring device is arranged in each power distribution box and is used for monitoring real-time power parameters of each power facility connected into the power distribution box. The management computer receives and analyzes the real-time power parameters. If abnormal power parameters occur, fault information for the power distribution box is generated, and the fault information is sent to a corresponding maintenance station. The passenger flow acquisition device is used for acquiring passenger flow information entering the scenic spot and sending the acquired passenger flow information tothe management computer. The management computer receives and counts the passenger flow information entering the scenic spot, imports the passenger flow information into a facility operation prediction model and adjusts the detection strategy of each distribution box. According to the invention, the detection strategy of each distribution box can be timely adjusted according to the passenger flowinformation; the effectiveness of the collected data is improved; and the monitoring effect is improved.
Owner:江苏瑞莫德电气科技有限公司

Battery management system and voltage signal processing method thereof

The embodiment of the invention discloses a battery management system and a voltage signal processing method thereof. The voltage signal processing method comprises the following steps: collecting thevoltage at the two ends of each battery monomer, the voltage at the two ends of each battery module, the battery internal total voltage of the battery pack and the battery external total voltage, comparing the four types of voltages in pairs, taking a comparison result of which the difference value is smaller than a preset threshold value as a condition, and respectively determining the credibility of the four types of voltages according to the satisfaction conditions of at least two conditions in the six conditions, thereby realizing accurate judgment of a voltage signal acquisition fault inthe battery pack. According to the embodiment of the invention, the method can improve the effectiveness of battery voltage collection fault judgment, achieves the effective diagnosis and processingof a voltage signal, can achieve the accurate fault prompt, and achieves the timely troubleshooting.
Owner:FAW JIEFANG AUTOMOTIVE CO
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