79 results about "1-Wire" patented technology

A compact integrated APD device integrates the bias voltage and temperature compensation functions inside a standard 4-pin PIN package. The active components of the bias and temperature compensation circuits are integrated into a single ASIC using a high-voltage CMOS process and operated at frequencies of at least 1 MHz to greatly reduce the size of the passive components. To mount the relatively large ASIC chip inside the package with the APD chip, TIA chip and passives, the 4-pin package may be modified by either recessing the pins inside the can to facilitate surface mounting the ASIC or adding a spacer inside the can to facilitate three-dimensional packaging. Communication with the bias and temperature circuits is accomplished using a unique bi-directional 1-wire serial interface via the power supply pin. A clock signal is preferably embedded in the control data to synchronize the APD with an external controller.

The method for receiving and transmitting optical data and control information to and from remotely located receivers and transmitters in an optical location system. Wherein, the locator system tracks and locates the position of a main object having an attached transceiver. This transceiver has stored in memory selected identifying information about the object to which the transceiver is attached. The selected identifying information was received by the transceiver over it's 1-wire interface from a touch memory.

Circuit, apparatus, method, and signal set for sending and controlling bi-directional data flow between a microprocessor (or other device) and a peripheral device having a standard UART-based, SPI-based, or similar interface over a single input / output (I / O) port line, utilizing the differences of the instantaneous source impedance of the I / O port line operating with data in and data out states. Circuit, apparatus, method, and signal set for separating the 1-wire data into standard 2-wire and 3-wire UART-based, SPI-based, or similar interfaces for use with unmodified peripheral devices. The exchange of data on a bit-by-bit or analog basis, with insignificant return delay, allows operation independent of any signaling protocol.

An electronic device includes a housing, a connector port and a switching device. The connector port receives a peripheral device. The processor is electrically connected to the connector port and includes a detection pin and a 1-wire pin. The switching device is coupled between the connector port and the processor to selectively connect the connector port to one of the detection pin or the 1-wire pin. When the peripheral device is inserted into the connector port, the processor controls the switching device to connect the connector port to the detection pin to determine whether the connected peripheral device is a 1-wire device. When the processor determines that the connected peripheral device is a 1-wire device, the processor controls the switching device to connect the connector port to the 1-wire pin and the processor executes 1-wire communication with the peripheral device via the 1-wire pin.

The invention discloses a monobus DC grounding fault on-line automatic monitoring device used in an electric power DC power supply system and is characterized in that the device comprises a sensor connected between a plurality of DC branches and the bus, and an expansion interface circuit of the sensor; the sensor is connected on the monobus through the expansion interface circuit; the monobus is connected with a host which comprises a single-chip control circuit; a single chip of the single-chip control circuit is connected with a monobus interface circuit, an interbus voltage measurement circuit, a bus-to-ground voltage measurement circuit, a serial port expansion circuit, a clock calendar module, an E2PROM memory chip, a bus segment relay, an uneven grounding relay and an alarm contact relay, respectively; and the serial port expansion circuit is connected with a printer, a touch screen and an Ethernet module, respectively. The monobus DC grounding fault on-line automatic monitoring device can monitor the running status of the DC power supply system in a real-time way, as well as automatically and timely detect, accurately judge and display the running parameters of the fault branches; the device has the advantages of simple structure, low cost, as well as easy bus expansion and maintenance, which saves the I / O port line resources.

The invention relates to a time resolution fluorescence immunochromatography test strip for jointly detecting CA19-9 and a Carcino-Embryonic Antigen (CEA). The test strip comprises a base plate, a nitrocellulose membrane, a glass fiber cotton and water absorption paper, wherein the nitrocellulose membrane is coated with a CA19-9 monoclonal antibody used as a test 1 wire (T1 wire), a CEA monoclonalantibody used as a test 2 wire (T2 wire) and a sheep anti-mouse polyclonal antibody used as a quality control wire (C wire); the glass fiber cotton is divided into a sample application region and a combination region; the combination region is sprayed with a time resolution fluorescence microsphere-labeled CA19-9 monoclonal antibody compound and a CEA monoclonal antibody compound. According to the time resolution fluorescence immunochromatography test strip and the kit for jointly detecting the CA19-9 and the CEA, test for the concentrations of the CA19-9 and the CEA can be completed within arelatively short time; a test result is high in accuracy and high in sensitivity; a requirement for quick test beside a clinical bed and requirements of a primary community hospital can be met.

The invention relates to a difference signal pair twist structure USB3.1 wire which is characterized by comprising an internal structure, an outer shielding layer (6), a woven layer (7) and a protections sleeve layer (8), wherein the outer shielding layer (6), the woven layer (7) and the protection sleeve layer (8) are orderly arranged in an outward direction from the internal structure; the internal structure comprises four first signal wires (1), four electronic wires (2), a second signal wire (3), a power source wire (4) and a filling wire (5); every two of the four first signal wires (1) cling to each other and therefore the four first signal wires (1) are arranged to form a matrix; the power source wire (4) and the filling wire (5) are positioned in a gap formed at the inner sides of the four first signal wires (1), the four electronic wires (2) are respectively positioned in a gap formed at the outer sides of the four first signal wires (1), and the second signal wire (3) is placed in a gap formed at the outer sides of two first signal wires (1). The difference signal pair twist structure USB3.1 wire is advantaged by stable electrical performance, low wire material processing cost and low unit price of materials.

The invention discloses a 1-wire bus device ID-based communication protocol, which comprises a monitoring module, an upper computer and a 1-wire bus network, wherein the monitoring module transmits acquired monitoring information to the upper computer through an established communication protocol according to the command of the upper computer; and the upper computer can access and control the monitoring module by sending a command. The content of the protocol comprises that: the upper computer sends a monitoring information reading command and a response format of the monitoring module; the upper computer sends an information reading command and a response format of the monitoring module; and the upper computer sends a configuration and control command and a response format of the monitoring module to the monitoring module. In the 1-wire bus device ID-based communication protocol, a 1-wire bus device ID code and monitoring information are bound to be transmitted in the response made by the monitoring module to the monitoring information reading command sent by the upper computer to allow the upper computer to directly use the ID code to determine a1-wire device to which the attached monitoring information belongs, so the 1-wire bus device ID-based communication protocol ensures the reliable recognition of the monitoring information and has the advantages of simplicity, high efficiency and strict information matching.

Through bus drive, í«ANDí» gate, í«NOTí» gate, the drive circuit possessing two sets (A, B) of identical functions of 4 wires drive realizes separation from monobus bus in one route to bus in multiple routes. Under control of data transmission direction control signal, the bus drive makes monobus carry out bi-directional data transmission and driven so as to raise quantity of monobus devices and distance of data transmission driven by monobus bus effectively. Advantages are: easy to connect to computer or single chip, less resources used, easy of editing control program. The invention can widely be applicable to drive 1-Wire bus device, especially, suitable to temperature measurement system with 1-Wire bus in remote multiple measuring points.

The invention discloses an encryption and authentication module and a BIOS firmware protection method based on the module. The method is implemented in the step that the encryption and authentication module which works in the drive execution environment (DXE) stage is added into a BIOS, wherein the encryption and authentication module is a DXE Driver, the encryption and authentication functions are achieved in the mode that 1-Wire bus timing sequence access is simulated through a GPIO, and BIOS firmware is protected. Compared with the prior art, according to the encryption and authentication module and the BIOS firmware protection method based on the module, only few devices are added in an existing hardware scheme so that the BIOS firmware can be effectively protected, the BIOS firmware is prevented from being illegally stolen, the practicality is high, the application range is wide, and popularization is easy.

A temperature compensation method for a multifunctional electric energy meter relates to a temperature compensation method for an electric energy information monitoring device, which overcomes the detects that temperature compensation is only performed on parts of the multifunctional electric energy meter in the prior art, solves the problem of the temperature compensation of the multifunctional electric energy meter in the right perspective and improves the precision of the electric energy meter. A temperature data acquiring circuit comprises a digital temperature measuring chip, a processor MCU and a peripheral auxiliary circuit. The temperature measuring chip transfers the acquired digital temperature data to the processor MCU through an I / O port according to the 1-Wire bus protocol, and the processor MCU carries out a pointed compensation to the power data of the multifunctional electric energy meter by a temperature compensation arithmetic. The invention can ensure the measuring precision of the multifunctional electric energy meter under the condition with terrible temperature condition and has the advantages of simple circuit design and comprehensive temperature compensation.

The invention relates to an electromechanical intelligent anti-theft lock key control circuit and an electromechanical intelligent anti-theft lock trinity key matched with an electromechanical anti-theft lock. The electromechanical intelligent anti-theft lock key control circuit comprises a 1-Wire type electronic registration code memory, a wireless transceiving control module, a wireless transceiving drive module and a cell. The electromechanical intelligent anti-theft lock key comprises an electromechanical intelligent anti-theft lock key control circuit, an insulating fixed rack handle with control keys, a conductor key plug and a collecting positive conductor insulated with one end of the conductor key plug; and the collecting positive conductor and the conductor key plug are respectively connected with a data port and a ground port of the 1-Wire type electronic registration code memory. The invention provides the electromechanical intelligent anti-theft lock trinity key which has the advantages of simple structure, low cost, and functions of mechanical identification, electronic identification and remote identification.

A portable electronic device and an accessory device thereof, and an operating method for a portable electronic device. According to the disclosure, an accessory device coupled at a universal serial bus connector of a portable electronic device is detected and identified via the identification pin of the universal serial bus connector. When it is identified that the accessory device supports 1-wire communication via the identification pin, the accessory device is accessed via the 1-wire communication via the identification pin.

The invention relates to a high-voltage control power transformation system, in particular to a method for testing a high-voltage power transmission and power distribution system. A method for testing a high-voltage power supply and power distribution system loop which comprises a busbar cabinet connected with a busbar PT (Potential Transformer) cabinet and a wire inlet cabinet at two sides, comprises the steps of: 1. knowing the electrical schematic diagram of the high-voltage power distribution system well, wherein the busbar PT cabinet comprises a No.1 PT cabinet and a No.2 PT cabinet, and the wire inlet cabinet comprises a No.1 wire inlet cabinet and a No.2 wire inlet cabinet; 2. introducing a way of an alternating current power supply to a self-made simple device; 3. feeding two ways of power supplies with the same phase sequence into two sections of inlet wires by the simple device; and 4. carrying out the related electrical test, comparing an analysis test result with a theoretical calculation value, and determining whether the circuit is correct. By the method for testing the high-voltage power supply and power distribution system loop, the problem in circuit loop can be rapidly found out without performing a high voltage test again.

The invention discloses a wireless sensor implemented by using a radio frequency identification (RFID) tag. The wireless sensor comprises the RFID tag and a 1-wire state machine, wherein the RFID tag comprises an antenna, a radio frequency front-end circuit, a signal processing circuit, a collision detection logic circuit and an electrically erasable programmable read-only memory (EEPROM); an input end of the 1-wire state machine is connected with the EEPROM, and an output end of the 1-wire state machine is connected with a register and connected with the antenna through the signal processing circuit; the register is connected with a 1-wire sensor; a 1-wire command query table is stored in the EEPROM; the state machine sequentially reads commands from the EEPROM, drives a 1-wire bus and executes a sensor data reading function, and data which are read are stored in the register; and after a collision detection unit detects that collision does not exist, the RFID tag sends identifiers (ID) which are stored in the EEPROM and sensor data which are read to a reader-writer. The wireless sensor has the advantages that functions of a wireless sensor network are realized by using the conventional low-cost RFID tag circuit, the sensor data are read by using the conventional RFID reader-writer instead of special sensor reading equipment, and various 1-wire sensor types and topological structures are supported.

The invention discloses a treatment method for CT disconnection of double-bus single-section bus tie based on topological constraints, which includes the following steps: (1) setting double-bus single-section wiring mode, and the protection range of the busbar protection device is I and II , III three-section busbar; (2) When the device is not interconnected, it is calculated that the large difference A phase difference flow is zero, and the I bus and II bus have a small difference A phase difference flow, indicating that the bus connection 1 between I and II bus occurs Phase A CT is disconnected, and the busbar protection device sends out an alarm signal of "bustie 1 CT disconnection"; (3) If the busbar 1 with CT disconnection is not adjacent to the busbar, that is, Phase III, a phase A fault occurs in the area, and all three buses have differential currents , After eliminating the influence of bus coupler 1, the device locks the I and II bus differentials, trips all branch circuit breakers on III bus, and removes the fault. In the present invention, after the 1CT of the bus coupler is disconnected, the bus protection device correctly responds to the fault in the area, does not expand the scope of fault power failure, does not accidentally trip the non-fault bus, ensures the safety of power consumption, and reduces the impact of the bus fault on the power grid system and users.

A data read and write device for a USB port of a 1-Wire device includes a USB interface and a 1-wire host. The USB interface includes a USB buffer and a USB connector, and converts a USB command sent by a host computer to a 1-Wire command. The USB buffer is installed in a microcontroller, and the USB connector is connected to the host computer. The 1-Wire host includes a group of DIO pins and a connector connected to the microcontroller. The 1-wire host controls one of the DIO pins to transfer the 1-Wire command to a 1-Wire slave, receives feedback data of the 1-Wire slave, and temporarily storing the feedback data into the USB buffer. The microcontroller sends the feedback data to the host computer.

This invention relates to an analyzer of a single bus and double-way communication protocol, especially to one of 1-wire protocol, which is composed of a single-bus signal analyzer, a microprocessor system and an interface circuit. Originally, one connecting end of a single bus is connected with a port of the analyzer and the other is connected with the other, the analyzer can maintain the normal work of the single bus, the two-path signals analyzed by the analyzer are connected to two lead pins of the microprocessor to get the pulse width of the level of the two waveforms and get the concrete waveforms of single bus communication and sends the analyzed result to the computer via interface circuit.

A method for improving the precision and reliability of the heating control for an anesthetic machine circuit, comprises: a 1-wire temperature sensor is positioned in the anesthetic machine circuit and electrically connected to a control unit. The control unit reads the ID and verification code of the temperature sensor according to 1-wire protocol and determines the validity of the temperature sensor. The control unit reads the temperature value of the temperature sensor and compares it with the target control temperature. The control unit then turns on the control switch when requiring heating such that power supply powers the heater and the circuit temperature rises, or on the contrary turns off the control switch and the circuit temperature drops according to a control algorithm. The average power of the heater is controlled by PWM method such that the circuit is operated at a predetermined control temperature. With the usage of the 1-wire temperature sensor, the problem of analog signal transmission error is solved, the use of the sensor is facilitated, a long-distance temperature detection and control is obtained. At the same time the digital signal form and interface protocol of the sensor have relative higher anti-disturbance performance and failure recognition function. Accordingly, the requirement on the interface connection quality is reduced, and the reliability is improved.

A system for communicating with a host using control signals over a 1-wire interface is disclosed. The system includes a driver coupled to the host by the 1-wire interface. Control signals are transmitted from the host to the driver for decoding by the driver controller. The control signals are pulse width modulation format signals which are interpreted by the driver as binary encoded command mode signals or analog encoded command mode signals, depending upon when the signals are received in relation to a preamble pulse and a post-amble pulse.

The invention provides a novel microsatellite multifunctional data testing system. A satellite data testing device comprises an ASIC chip, an Ethernet communication module, a USB communication module, a power module, an RS422 / RS485 serial port communication module, a wireless communication module, a 1-WIRE communication module, a CAN bus communication module and an RS232 communication module, wherein the Ethernet communication module, the USB communication module, the power module, the RS422 / RS485 serial port communication module, the wireless communication module, the 1-WIRE communication module, the CAN bus communication module and the RS232 communication module are connected with the ASIC chip. A satellite testing data display system conducts data interaction with the satellite data testing device through an RS232 serial port and an Ethernet port or a USB port capable of being arranged, and data analysis, display and drawing are conducted through the satellite testing data display system. Various collected satellite data can be encoded and decoded through hardware of the data testing device and converted into data in formats capable of being identified by the satellite testing data display system, and therefore the satellite testing data display system can be used for conducting comprehensive system testing on tested satellites.

The invention discloses a single-end measurement method for the connection and disconnection of an on-board cable, which comprises a communication connection establishment step which is used for selecting one wire in the on-board cable through a host and an intelligent short-connection module to serve as a 1-WIRE communication wire so as to establish communication connection, a measurement circuitestablishment step which is used for enabling the short-connection module to receive a communication command sent by the host through the 1-WIRE communication wire, controlling an analog switch, andenabling a corresponding wire in the cable to be connected to a grounding pile so as to establish a measurement circuit; and a single-end measurement step which is used for enabling the host to realize single-end measurement for the cable through the measurement circuit. The single-end measurement method has the advantages of small size, strong adaptability, abundant test information, flexible testing, high speed, accuracy and the like, and can meet all test requirements for the cable before the final assembly and during the aircraft maintenance.

The invention discloses a self-assembly-type modular home control system. The self-assembly-type modular home control system comprises a wire, a power source module, a bus, an interchangeable control module and an interchangeable execution module, wherein the interchangeable control module and the interchangeable execution module are respectively connected with the bus and carry out signal transmission through the bus, the interchangeable control module is composed of multiple control basic modules which are connected with the bus in parallel, and the interchangeable execution module is composed of multiple execution basic modules which are connected with the bus in parallel. Due to the fact that the bus adopts a 1-wire structure, a data collision detection avoiding mechanism is provided, data transmission is rapid and accurate, and the data calculation time and the inner storage are largely saved. The basic modules of the system all adopt a modular structure design, are interchangeable and have good flexibility and autonomy, and the home control system integrates the advantages of easy and convenient operation, powerful functions and stable performance.

The invention discloses an automatic put and automatic recovery control system. A No.1 wire inlet cabinet, a bus coupler cabinet and a No.2 wire inlet cabinet are connected with a background safety automatic device through buses. Wire inlet voltage signals of the No.1 wire inlet cabinet and the No.2 wire inlet cabinet are connected through a voltage sampling unit, a wire inlet breaker at a fault side is disconnected automatically when No.1 wire inlet or No.2 wire inlet is out of order, the bus coupler cabinet is input, when a wire input power supply recovers, the bus coupler cabinet is disconnected automatically, the wire inlet breaker is put, Through respective multifunctional measurement and control modules, collected power grid information of current signals, voltage signals of the No.1 wire inlet cabinet, the bus coupler cabinet and theNo.2 wire inlet cabinet, the switch state of the breaker and the like is uploaded to the background safety automatic device by utilization of the communication unit of the multifunctional measurement and control module through buses, and a control connection and disconnection instruction sent back from the background safety automatic device is received. Switching of a plurality of functional modes of automatic put and automatic recovery, automatic put and no automatic recovery, , and manual control and remote control of a switch cabinet and the like is achieved through a change over switch arranged at the bus coupler cabinet.

The invention provides a space internal bus power distribution controller and relates to the field of power supply control over satellite-borne equipment on a satellite. The problems that an existing space power distribution controller occupies hardware resources of a lower computer, the calculation difficulty and the complexity are improved, and circuits are complex are solved. The controller comprises a lower computer circuit, a shunting circuit, a charging control circuit, a discharging control circuit, a battery equalization circuit, a power distribution circuit and a sampling circuit which are used for data communication and instruction transmission through a 1-wire bus. A plurality of circuits are designed, reasonable distribution is carried out on power distribution, the stability and reliability of the power distribution controller are considered from multiple perspectives, various states occurring in power distribution are comprehensively analyzed, and real-time data monitoring ensures normal operation of equipment; meanwhile, the 1-wire bus design is used, and all data transmission is achieved through the bus, so that software and hardware functions of the power distribution controller are clear, the circuit structure is simplified, the error risk of the circuits is reduced, and the reliability of the power distribution controller is guaranteed on a mechanical layer.