54results about How to "Save interface resources" patented technology

The invention discloses a teaching scientific-research experiment platform for a hardware-in-the-loop intelligent track and belongs to the technical field of mechanical electrical integration . In the invention, a supervisory computer software module in a computer is used for analyzing and processing status information of the track and gives control instructions to the track. The computer exchanges data with a communication system through a computer communication interface. The supervisory computer software module analyzes and extracts the status information of the track after receiving the status data frames of the car, and synthesizes the control instructions to form control instruction data frames before the supervisory software module dispatches the control instruction data frames. An intelligent track system carries various sensors and motion execution units of a track model. The information acquired by the sensors is synthesized into status data frames of the track and dispatches the status data frames to the communication system. After the intelligent track system receives and analyzes the control instruction data frames from the communication system, the smart track system extracts effective control instruction information, and outputs the control signals of a motor and a control actuator to control the motor and the control acutator. The invention can be used for simulation and demonstration of scientific research experiments.

The embodiment of the invention provides a microphone circuit, a system and a headset. The microphone circuit comprises a microphone chip and a signal conditioning circuit. The microphone chip is provided with a direct-current power input end, a first signal output end and a grounding end connected with the ground. The signal conditioning circuit is connected between the first signal output end and the ground to make an alternating-current signal access formed between the first signal output end and the ground, and is used for superposing a first analog audio signal output by the first signal output end to a direct-current power input signal of the direct-current power input end for output. According to the embodiment, the signal conditioning circuit capable of conducting alternating-current signals is arranged between the first signal output end of an original output analog audio signal and the ground, so that the analog signal output by the first signal output end is superposed to the direct-current power input signal of the direct-current power input end for output; as a result, output pins of the microphone circuit are reduced, and then operation space is provided for saving interface resources between microphone equipment and terminals.

The present invention provides a method for acquiring video data by using a camera mobile phone as a computer camera, which comprises: step A: the camera mobile phone is virtualized as a video-capturing device in a computer; step B: the mobile phone virtualized as the video-capturing device in step A is selected as current video-capturing device of the computer; step C: the computer sends a command for acquiring video data to the mobile phone selected as the current video-capturing device, and said mobile phone acquires video data according to the received command and transmits to the computer via wireless connection; and step D: the computer receives the video data transmitted from the mobile phone. The invention can achieve a resource sharing between the mobile phone and the computer, make full use of their functions, save the interface resource of the computer and enable the mobile phone to break down the capacity limitation during the acquisition of video data.

A method for multiplexing clock and signaling includes generating reference frequency source information, system timing information and simplex signaling by main control clock board, multiplexing said information and signaling to be a serial data stream being transmitted on each service signal board, obtaining required information by each service single board according to serial data stream. The system for realizing the method consists of main control clock board, at least one service board, at least one physical bus for connecting said clock board to said service board.

The invention discloses a method and device for adjusting the sound volume of a buzzer, computing equipment and a computer storage medium. The method comprises the steps of acquiring a working frequency characteristic curve of the buzzer; setting a driving frequency of a driving circuit according to the working frequency characteristic curve; and enabling the driving circuit to drive the buzzer towork according to the driving frequency. Therefore, according to the scheme disclosed by the invention, the working frequency characteristic curve of the buzzer is utilized and the driving frequencyof the driving circuit of the buzzer is set according to the working frequency characteristic curve so as to achieve the beneficial effect that the sound volume of the buzzer is controlled only by adjusting the frequency of a PWM (Pulse Width Modulation) module instead of a duty ratio; moreover, only one triode and the PWM module are used, so that the circuit is simplified, the cost is reduced andthe probability of function disabling due to device damage of the buzzer is greatly lowered; furthermore, only one path of PWM module is output, so that the software design is simpler and the interface resource of the PWM module of a single chip is saved.

The present invention discloses a video collection method, related device and system. In the technical scheme, the video collection method, related device and system can select other terminals having the video collection capacity satisfying a setting video collection capacity requirement to take as a collection terminal for collection of video data based on the obtained video collection capacity of other terminals establishing the session connection with the terminal device which launches a video collection request so as to solve the problems that the video collection devices selected through the current video collection mode is fixed and the real requirement of an application scene cannot be better satisfied to result to have a low video capture effect. The video application experience of a user is improved, and moreover, the effects of saving the interface resource of a terminal device which launches the video collection request, improving the utilization rate of the device and improving the flexibility of device selection are achieved..

The invention discloses a computing equipment expanding system and expanding method. The computing equipment expanding system comprises a main computing unit, an expanding computing unit and a memory, wherein the main computing unit comprises a first main function module and a first interconnection interface controller, the expanding computing unit comprises a second main function module and a second interconnection interface controller, the first interconnection interface controller and the second interconnection interface controller respectively provide interconnection memory interfaces so that the main computing unit is connected to the expanding computing unit through a first memory bus, and the first interconnection interface controller is reused as a memory controller. The computing equipment expanding system has the advantages that the first interconnection interface controller is reused as the memory controller, the interface resource of the main computing unit can be saved, and the PCB (printed circuit board) wiring is simplified.

The invention relates to a photovoltaic inverter multi-channel input reverse connection detection circuit with the self-diagnostic function. The photovoltaic inverter multi-channel input reverse connection detection circuit with the self-diagnostic function comprises a photoelectric coupler, a resistor R1, a resistor R2, a resistor R3 and a light emitting diode. In a multi-channel independent solar cell input system, through the photovoltaic inverter multi-channel input reverse connection detection circuit, just one detection port needs to be used by a control chip so that the reverse connection state of any channel of multi-channel solar cell input, the resource of connectors is saved, cost is lowered effectively, and the photovoltaic inverter multi-channel input reverse connection detection circuit can diagnose whether normal work can be carried out in a self-diagnostic mode.

The invention provides a system for burning a baseband chip in a double chip scheme. The system comprises electronic terminal equipment for executing a data burning function, the baseband chip and a multimedia chip, wherein the baseband chip is connected with the multimedia chip by virtue of a serial port, the multimedia chip is connected with the electronic terminal equipment by virtue of CDC (Control Data Corp) USB (universal serial bus) connector equipment virtualized to a serial port, and the multimedia chip is used for receiving and transmitting burning data from the electronic terminal equipment. The invention also discloses a method for burning the baseband chip in the double chip scheme. The system and the method can be used for reserving at least two serial ports in a baseband chip burning process.

The embodiment of the invention provides a decoder and a decoding method, relates to the field of information processing, and provides a decoding mechanism capable of improving the throughput rate of the decoder, fully utilizing the processing space of the decoder and saving the bus control resources. The method comprises the following specific steps: after acquiring at least one decoding block, preprocessing each decoding code according to the characteristic parameter of each decoding block of the at least one decoding block, acquiring the decoding sequence of each decoding block, respectively inputting each decoding block into a decoding core, which is corresponding to the decoding sequence, in at least two decoding core according to the decoding sequence, respectively decoding the received decoding block by virtue of the decoding cores according to the decoding sequence, and outputting decoded data according to the decoding sequence. The embodiment of the invention is used for decoding Turbo codes.

The key ideal of the invention comprises: setting different protocol identifiers for different signaling systems; the sending end sends a message and the protocol identifier corresponding to said message to the receiving end; according to the received identifier the receiving end determines a signaling system protocol corresponding to said protocol identifier. By the invention, the messages using different signaling protocols can be transported through one transmission port so as to avoid using different ports to transport different protocol messages.

The invention discloses an underwater dedicated double-redundant switching circuit which comprises a connection terminal P2 for receiving a signal, a connection terminal P3 for receiving an MCU control signal, a connection terminal P4 for connecting a main device, a connection terminal P1 for connecting a slave device, an optocoupler U1, a transistor Q1, a plurality of relays, and a power supply terminal for providing working power supply. The relays include signal input common ends and normally open ports and normally closed ports for outputting reception signals of the signal input common ends, the connection terminal P2 is connected to signal input common terminals, the normally closed ports are connected to one of the connection terminal P4 and the connection terminal P1, and the normally open ports are connected to the other connection terminal. The cost and interface resources can be saved for the device, one control signal can control multiple signals to be switched at the sametime, and the underwater dedicated double-redundant switching circuit is fast and efficient and has good reliability and applicability.

The embodiment of the invention provides a card in-place detection device. The device comprises a conversion module and a control module, wherein the conversion module is provided with a plurality ofinput ends, and the plurality of input ends of the conversion module are connected with a plurality of in-place signal ends of a card in a one-to-one correspondence manner when the card is inserted; the output end of the conversion module is connected with the in-place detection end of the control module; and the conversion module is used for outputting an in-place indication signal to an in-placedetection end of the control module when at least one specified level signal exists in the signals of the in-place signal ends. According to the embodiment of the invention, the conversion module canoutput one in-place indication signal to the control module when at least one specified level signal exists in the input signals of the plurality of in-place signal ends, so that the control module can realize the card in-place detection only by occupying one in-place detection end of the control module, and the interface resources of the control module can be saved.

The invention discloses a portable mobile medical terminal and a medical communication system. The portable mobile medical terminal comprises a first main board and a second main board; the first mainboard comprises a first processor where at least a first operating system runs; the second main board comprises a second processor where a second operating system runs; the second main board is integrated with at least an Internet of Things communication module; the Internet of Things communication module is used for reading data of doctors and patients in an Internet of Things device; and the first main board and the second main board are communicated through a first communication interface. By adoption of the scheme, the running robustness of the portable mobile medical terminal can be improved.

The invention discloses a boundary scan bridge, a load system and relative method, which can solve the problems that the load speed, load resource and load stability can not be both best. The inventive load system comprises: a boundary scan bus; a boundary scan test bus controller that connected to said boundary scan bus; loaded memory; and a boundary scan bridge, which is connected to the loaded memory via internal IO interface and connected to the JTAG bus.

The invention relates to an interface calling method and device, a computer readable storage medium and computer equipment. The method comprises the steps: determining an interface calling link corresponding to a received service request; acquiring state information of each interface in the interface calling link; calculating the calling success probability of the corresponding interface accordingto the state information; when the calling success probability of each interface is greater than a threshold, calling the interface in the interface calling link to respond to the service request. According to the scheme provided by the invention, invalid interface calling overhead can be reduced, and interface resources are saved.

The invention discloses a plant equipment state characteristic signal monitoring system. The system comprises a characteristic signal sensing unit, a signal transmitter, a PLC, a DCS information acquisition cabinet and a main control room monitoring platform. The characteristic signal sensing unit is used for collecting various characteristic signals of the plant equipment state. The signal transmitter is respectively connected with the characteristic signal sensing unit and the PLC, and is used for receiving the characteristic signal acquired by the characteristic signal sensing unit, converting the characteristic signal into a physical quantity characteristic signal and sending the physical quantity characteristic signal to the PLC through a communication protocol. The PLC is connected with the DCS information acquisition cabinet and is used for sorting the received signals and sending the sorted signals to the DCS information acquisition cabinet. The DCS information acquisition cabinet is connected with the main control room monitoring platform and is used for transmitting the sorted signals to the main control room monitoring platform. According to the system, DCS interface resources can be saved, so that the hardware cost and the construction difficulty of factory building are reduced.