38results about How to "Easy and reliable control" patented technology

In a double-wrap band brake assembly, an intermediate band is provided with a first friction material forming a first friction surface from a portion of the intermediate band near an apply bracket to a predetermined intermediate portion thereof, the first friction surface working for forming a lubricant film. The intermediate band is further provided with a second friction material having a thickness that is larger than a thickness of the first friction material and forming a second friction surface from the predetermined intermediate portion to a vicinity of a coupling portion of the intermediate band with a pair of outer bands, the second friction surface working for removing the lubricant film.

A device for holding and rotating a plate shaped article comprises a group of fixed pins and a group of pivot pins arranged along the circumference of the movable base in a manner that each pivot pin opposites a fixed pin, and also comprises magnetic bodies positioned within and outside two opposing sides of the pivot pins. Each of the pivot pins can be driven to rotate around its pivot back and forth under the magnetic repulsive force between two adjacent magnetic bodies, so as to release or clamp the plate shaped article. The present invention has advantages of simple structure, convenient and reliable action control, controllable clamping force and good compatibility with various processing chambers.

The present invention discloses a light source module, a light source module driving circuit and a driving method. The driving circuit comprises: a power supply, which provides input voltage; a control signal generating circuit, which inputs the input voltage provided from the power supply and outputs an enable signal and a dimming signal; a driving chip, which is connected with the power supply and connected to the enable signal and the dimming signal output from the control signal generating circuit, driving the light source of the light source module according to the enable signal and the dimming signal. Through the above way, the present invention utilizes the input voltage to generate the enable signal and the dimming signal. Therefore, it only needs to provide external input voltage to control the light source module in operation, which makes the control more convenient and reliable.

The invention provides an electric vehicle battery pack temperature control device applied in the technical field of electric vehicle parts, and the invention also relates to a control method for the electric vehicle battery pack temperature control device, the electric vehicle battery pack temperature control device One end of the heat storage heat exchanger (2) is connected to one end of the battery pack (1) through the connecting pipeline I (3), and the other end of the heat storage heat exchanger (2) is connected to the battery pack (1) through the connecting pipeline II (4). The other end is connected, and a connecting pipeline III (9) is set between the connecting pipeline I (3) and the connecting pipeline II (4), and a heat dissipation heat exchanger is arranged on the connecting pipeline III (9) (10 connecting pipeline III ( 9) A heat dissipation channel cut-off valve (11) is arranged on the top. The electric vehicle battery pack temperature control device and control method according to the present invention can make the battery modules in the battery pack be charged and discharged in a temperature range with high efficiency, and improve The input and output efficiency of the battery module improves the service life and cruising range.

The invention discloses a multi-carrier power self-adaptive control circuit module. The r self-adaptive control circuit module is featured by simple and convenient control, high real timeliness, avoiding massive calculation and accurate and reliable measurement. The module is realized through the following technical solution that: a coupler C carries out real time sampling and coupling to the carrier powers on each carrier shunt and combined path; after being demodulated by a demodulator D, the carrier powers are sent to a monitoring processor; therefore, the carrier power values of each shunt and the combined path and the path loss information on each carrier link are obtained; the monitoring processor calculates according to each carrier power ratio input by a display screen and sends control information to an attenuator Att on each carrier shunt; and the attenuation value of the attenuator Att on each carrier shunt is adjusted self-adaptively. According to the module of the invention, each carrier power in a microwave channel is controlled precisely through demodulating and comparing the carrier powers of each shunt and the combined path in real time; and the problems of complex operation and relatively poor real timeliness in the prior art are solved.

The invention relates to a control method and a control device for an intelligent concert hall, comprising a sound quality target module, a sound quality prediction and optimization module, an acoustic unit control and action module, a sound quality measurement module, a sound quality evaluation module and a sound quality mode storage module; the sound quality target Module, sound quality prediction and optimization module, acoustic unit control and action module are connected in sequence, responsible for the optimization and regulation of the state parameters of the acoustic unit, the sound quality measurement module, sound quality evaluation module, and sound quality mode storage module are connected in sequence, responsible for the regulation of the acoustic unit Measurement, evaluation and storage of sound quality in concert halls. Compared with the prior art, the present invention has the characteristics of an automatic feedback closed-loop control structure composed of a sound quality control system and an on-site measurement and evaluation system, and improves the reliability of the optimization result.

The invention discloses an exoskeleton joint experiment platform driven by pneumatic muscles, which belongs to the technical field of exoskeleton joint testing. The experimental platform includes a bracket and a working platform installed on the bracket, the working platform includes a joint component, a pneumatic muscle component, and a test matching component, and the joint component, the pneumatic muscle component and the testing matching component are all installed on the working platform , the pneumatic muscle component cooperates with the test matching component to drive the joint component to rotate. Through the measurement of the size and length of the pneumatic muscle tension, the joint rotation angle and the force of the limbs on the single arm during the movement, the test of three different drive matching modes is completed to obtain the advantages and disadvantages of each matching combination.