CN210829684U - Electric compressor operation information acquisition control device and electric compressor debugging system - Google Patents
Electric compressor operation information acquisition control device and electric compressor debugging system Download PDFInfo
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- CN210829684U CN210829684U CN201920747541.9U CN201920747541U CN210829684U CN 210829684 U CN210829684 U CN 210829684U CN 201920747541 U CN201920747541 U CN 201920747541U CN 210829684 U CN210829684 U CN 210829684U
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Abstract
The utility model discloses an electric compressor operation information acquisition control device and an electric compressor debugging system, wherein the electric compressor operation information acquisition control device comprises a driver and an upper computer; the driver comprises a voltage detection unit, a current detection unit, a CAN communication unit and a control unit, wherein the voltage detection unit reaches the current detection unit respectively outputs an input voltage signal and an output current signal of the driver, the control unit is connected with the upper computer in a two-way communication mode, the control unit respectively converts the input voltage signal and the output current signal of the driver into a first digital signal and a second digital signal and then packages the first digital signal and the second digital signal into message data and sends the message data to the upper computer according to a first period, and the upper computer sends a request instruction to the control unit according to a second period and receives the message data and then dynamically displays the running information of the compressor.
Description
Technical Field
The utility model relates to an electronic equipment field especially relates to an electric compressor operation information acquisition control device and electric compressor debug system.
Background
The state information of the compressor and the driver needs to be monitored in the debugging and testing process of the compressor, the phase current of the compressor and the waveform of the bus voltage are detected by using an oscilloscope, a universal meter and the like in the debugging process of the compressor, and the running state of the compressor is displayed through an external pressure gauge.
The information acquisition method is complex in operation, the compressor state information cannot be visually displayed, the data volume available for analysis is small, comprehensive analysis on complex problems is difficult to perform, in addition, various external devices are required to be used during testing, and the testing cost is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the problem that debugging and test of above-mentioned new energy automobile electric compressor exist, provide an electric compressor operation information acquisition controlling means and electric compressor debug system.
The utility model provides a technical scheme as follows:
the utility model provides an electric compressor operation information acquisition control device, which comprises a driver and an upper computer; the driver comprises a voltage detection unit, a current detection unit, a CAN communication unit and a control unit, wherein the voltage detection unit reaches the current detection unit respectively outputs an input voltage signal and an output current signal of the driver, the control unit is connected with the upper computer in a two-way communication mode, the control unit respectively converts the input voltage signal and the output current signal of the driver into a first digital signal and a second digital signal and then packages the first digital signal and the second digital signal into message data and sends the message data to the upper computer according to a first period, and the upper computer sends a request instruction to the control unit according to a second period and receives the message data and then dynamically displays the running information of the compressor.
The utility model discloses an among the motor compressor running information acquisition controlling means, message data includes eight bytes, and first byte and second byte are first digital signal, and the third byte is second digital signal, and fourth byte and fifth byte do the current rotational speed of compressor, the sixth byte do the temperature of driver, seventh byte and eighth byte do the fault information of compressor.
In the device for collecting and controlling the operation information of the electric compressor of the utility model, the control unit comprises a main control chip, and the output end of the voltage detection unit is connected to the 18 th pin of the main control chip; the main control chip reads the input voltage signal of the driver collected by the voltage detection unit and converts the input voltage signal into a first digital signal.
In the device for collecting and controlling the operation information of the electric compressor of the utility model, the output end of the current detection unit is connected to the 12 th pin of the main control chip; and the main control chip reads the output current signal of the driver collected by the current detection unit and converts the output current signal into a second digital signal.
In the device for collecting and controlling the operation information of the electric compressor of the utility model, the CAN communication unit comprises a CAN box; and a first bidirectional input/output port and a second bidirectional input/output port of the CAN communication unit are respectively connected with a 25 th pin and a 26 th pin of the main control chip, and a first output end and a second output end of the CAN communication unit are respectively connected to the CAN box and are in communication connection with the upper computer through the CAN box.
The utility model discloses an among the motor compressor running information acquisition controlling means, the host computer includes compressor state information display element, compressor state information display element includes compressor parameter setting subunit, fault state subunit and opens the start-stop control subunit.
The utility model discloses among the foretell electric compressor operation information acquisition controlling means, the host computer includes the waveform display unit.
The utility model discloses an among the motor compressor operation information acquisition controlling means, the first cycle is 100ms, the second cycle is 5 ms.
The utility model also provides an electric compressor debug system, debug system includes parameter transmission module, still includes foretell electric compressor operation information acquisition controlling means.
The utility model discloses an electric compressor operation information acquisition control device encapsulates to the message data after voltage signal and the current signal through the real-time acquisition driver convert to digital signal, the analytic received message data of host computer, dynamic display compressor state information, the operation waveform, it is simple directly perceived, can provide a large amount of data that are used for the analysis, the operation complex problem of the comprehensive analysis compressor of being convenient for, and the accessible sets up opening in the host computer and stops the control unit, simple and convenient swift control compressor's operation. Furthermore, the utility model discloses an electric compressor debug system deposits the driver operating parameter who sets up in the appointed catalogue of hard disk through parameter transmission module, and the repeated editing of being convenient for is used.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 shows a functional module schematic diagram of an electric compressor operation information acquisition control device according to an embodiment of the present invention;
fig. 2 is a circuit diagram showing a control unit of the electric compressor operation information acquisition control apparatus;
fig. 3 is a circuit diagram showing a current detecting unit of an embodiment of the operation information collection control device of the motor-driven compressor;
fig. 4 is a circuit diagram showing a CAN communication unit of an embodiment of the operation information collection control device of the motor-driven compressor;
fig. 5 is a circuit diagram showing a voltage detection unit of an embodiment of the operation information collection control device of the motor-driven compressor;
FIG. 6 illustrates a compressor status information display unit interface of an embodiment of the electric compressor operation information acquisition control device;
FIG. 7 illustrates a waveform display unit interface of an embodiment of the electric compressor operation information acquisition control device;
FIG. 8 illustrates a parameter delivery module interface for an embodiment of an electric compressor commissioning system.
Detailed Description
In order to make the technical purpose, technical solution and technical effects of the present invention more clear so that those skilled in the art can understand and implement the present invention, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, it is a functional module schematic diagram of an embodiment of the device for collecting and controlling operation information of an electric compressor of the present invention. The control device is used for acquiring the running information of the electric compressor in real time and dynamically displaying the running information. The control device comprises a driver 11 and an upper computer 16; the driver 11 comprises a voltage detection unit 12, a current detection unit 13, a CAN communication unit 15 and a control unit 14, wherein the voltage detection unit 12 and the current detection unit 13 respectively output an input voltage signal and an output current signal of the driver 11 to the control unit 14, the control unit 14 is in bidirectional communication connection with the upper computer 16 through the CAN communication unit 15, the control unit 14 respectively converts the input voltage signal and the output current signal of the driver 11 into a first digital signal and a second digital signal, then packages the first digital signal and the second digital signal into message data, and sends the message data to the upper computer 16 according to a first period, and the upper computer 16 sends a request instruction to the control unit according to a second period and dynamically displays the running information of the compressor after analyzing the received message data. The voltage detection unit 12 is configured to detect an input voltage of the driver 11, that is, a bus voltage signal; the current detection unit 13 is used for detecting an output current signal of the driver 11; the CAN communication unit 15 is used for data transmission between the driver 11 and the upper computer 16; the control unit 14 is used for compressor control, data processing and data transmission, and the upper computer 16 dynamically displays the state information and the running waveform of the compressor by receiving and analyzing message data sent by the control unit 14 according to a preset period.
As shown in fig. 2, it is a circuit diagram of a control unit according to an embodiment of the present invention. The control unit comprises a main control chip U17, wherein the main control chip U17 reads voltage signals and current signals detected by a voltage detection unit and a current detection unit in real time and transmits data through a CAN communication unit. The output end of the voltage detection unit is connected to the 18 th pin of the main control chip U17; the main control chip U17 reads the input Voltage signal of the driver collected by the Voltage detection unit and converts the input Voltage signal into a first digital signal, the first digital signal is a 16bit digital signal, a variable Voltage is defined in the main control chip U17, and the 16bit digital signal is assigned to the variable Voltage. The output end of the current detection unit is connected to the 12 th pin of the main control chip U17; the main control chip U17 reads the output current signal of the driver collected by the current detection unit and converts the output current signal into a second digital signal. Specifically, the main control chip U17 reads a Current signal collected by the Current detection unit, converts the Current signal into an 8-bit digital signal, defines a variable Current in the main control chip U17, and assigns the digital signal to the variable Current. In this embodiment, the model of the main control chip U17 is TMS320F 28031.
As shown in fig. 3, it is a circuit diagram of the voltage detection unit according to the embodiment of the present invention. The input end (P) of the voltage detection unit is connected to the driver, the bus voltage of the driver is obtained in real time, and the output end (UDC) of the voltage detection unit is connected to the 18 th pin of the main control chip U17. The circuit structure of the voltage detection unit is simple, and the detection is convenient.
Fig. 4 is a circuit diagram of a current detection unit according to an embodiment of the present invention. In the embodiment, the current detection unit comprises an amplifier U1-A, the three-phase output current of the driver is input to the positive input end and the negative input end of the amplifier U1-A through a resistor R21 and a resistor R22, and the output end of the amplifier U1-A is connected to the 12 th pin of the main control chip U17 through a resistor R10. The amplifier U1-A of this embodiment is model TL 084.
As shown in fig. 5, the embodiment of the present invention provides a circuit diagram of a CAN communication unit. The CAN communication unit comprises a CAN box; and a first bidirectional input/output port (CANRXD) and a second bidirectional input/output port (CANTXD) of the CAN communication unit are respectively connected with a 25 th pin and a 26 th pin of the main control chip, and a first output end (CANL) and a second output end (CANH) of the CAN communication unit are respectively connected to the CAN box, are in communication connection with the upper computer through the CAN box and perform data transmission.
As shown in fig. 6, the present invention provides a display unit interface for status information of compressor. The upper computer comprises a compressor state information display unit, and the compressor state information display unit comprises a compressor parameter setting subunit, a fault state subunit and a start-stop control subunit. The compressor parameters comprise driver voltage information, driver current information, driver temperature information, current compressor rotation speed information, compressor fault information and target compressor rotation speed. And after the master control chip successfully handshakes with the upper computer, transmitting the state information of the compressor to the upper computer in a message data CAN message frame mode through the CAN communication unit.
In one embodiment, the message data includes eight bytes, the first byte and the second byte are first digital signals, the third byte is second digital signals, the fourth byte and the fifth byte are current rotation speeds of the compressor, the sixth byte is temperature of the driver, and the seventh byte and the eighth byte are fault information of the compressor. Specifically, the message data CAN message frame includes 8 bytes of data, where the 8 bytes of data include an upper Voltage, a circuit Current, a Current rotation speed of the compressor Current, a driver Temperature, and compressor fault information EasError. Wherein, the Voltage is placed in the first two bytes, namely byte0 and byte1, the Current is placed in byte2, the CurrSpeed is placed in byte3 and byte4, the Temperature is placed in byte5, and the EasError is placed in byte6 and byte 7. The CAN message frame is transmitted in a data frame format, and the sending period is 100 ms. And the upper computer receives the CAN message sent by the main control chip, analyzes the CAN message data and displays the CAN message data on a compressor state information display interface.
The compressor parameter setting subunit CAN be used for setting operation parameters, inputting a target rotating speed expected to operate the compressor in a compressor state information display interface (setting rotating speed), clicking a (start) key or a (stop) key, and sending (setting rotating speed) data, start and stop) key information to the main control chip in a CAN message frame form by the upper computer. The main control chip takes the [ set rotating speed ] as the target rotating speed of the compressor, and takes the [ start ] and [ stop ] key information as the starting or stopping instruction of the compressor to control the driving or stopping of the compressor.
As shown in fig. 7, the waveform display interface according to the embodiment of the present invention. Defining an array variable Wave 1000 in the lower computer program, and circularly assigning values to elements in the array variable at the frequency of 12KHz after the compressor is operated. After the master control chip and the upper computer successfully handshake, a [ start display ] key is clicked on a waveform display interface, the upper computer sends a waveform display request instruction to the master control chip, and after the master control chip receives the request instruction, the elements in the array Wave [1000] are sent to the upper computer through the CAN communication unit, wherein the sending form is in a CAN message data frame format, and the sending period is 5 ms. Each frame of the CAN message contains 8 bytes of data, and the data in the array are sequentially sent in a circulating manner until the main control chip receives a request instruction for stopping sending.
The upper computer continuously receives the message data sent by the main control chip in a period of 5ms, an array WaveData [1000] is defined in the upper computer program, and the received message data is sequentially and circularly assigned to array elements in the array WaveData [1000 ]. The upper computer calls a graphic control to draw the array WaveData [1000] into a waveform, specifically, a polyline sequence is added to a display window of the graphic control, all elements in the array WaveData [1000] are used as data in the polyline sequence, the value of the array element is used as a vertical coordinate of a coordinate system, a subscript of the array element is used as a horizontal coordinate of the coordinate system, the graphic control draws the polyline sequence into the coordinate system to be displayed in a graphic mode, and the data in the sequence is updated according to the updating of the array elements in the array WaveData [1000], so that the effect of dynamic display is achieved.
When a key is clicked to stop displaying, the upper computer sends a request for stopping transmission of waveform data to the main control chip, the main control chip stops sending array Wave 1000 data to the upper computer, and the waveform of the graphic control display window stops updating.
The embodiment of the utility model provides a still provide an electric compressor debug system, debug system include parameter transmission module to and foretell electric compressor operation information acquisition controlling means. As shown in fig. 8, the parameter serial number, the parameter name, the setting value, the parameter range and the unit are displayed in the parameter passing module. After the parameters are set, clicking the parameter setting to input the parameters into the driver; when the parameter debugging is finished, clicking the parameter storage, and storing the parameter into the specified directory of the hard disk in a text format, so that the parameter can be conveniently edited and used repeatedly.
Compare with current compressor debug system technical scheme, implement the utility model discloses a motor compressor operation information acquisition controlling means, through gather the voltage signal and the current signal of driver in real time and encapsulate to the message data after converting into digital signal, the analytic received message data of host computer, dynamic display compressor state information, the operation waveform, it is simple directly perceived, can provide a large amount of data that are used for the analysis, be convenient for difficult comprehensive analysis of doing of the operation complexity problem of compressor, and the accessible sets up opening the control unit that stops in the host computer, the start-up or the shut down of simple and convenient swift control compressor. Furthermore, the utility model discloses an electric compressor debug system deposits the driver operating parameter who sets up in the appointed catalogue of hard disk through parameter transmission module, and the repeated editing of being convenient for is used.
It should be understood that the above-described embodiments only represent embodiments of the present invention, and the description thereof is more specific and detailed, but not intended to limit the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. The running information acquisition control device of the electric compressor is characterized by comprising a driver and an upper computer; the driver comprises a voltage detection unit, a current detection unit, a CAN communication unit and a control unit, wherein the voltage detection unit reaches the current detection unit respectively outputs an input voltage signal and an output current signal of the driver, the control unit is connected with the upper computer in a two-way communication mode, the control unit respectively converts the input voltage signal and the output current signal of the driver into a first digital signal and a second digital signal and then packages the first digital signal and the second digital signal into message data and sends the message data to the upper computer according to a first period, and the upper computer sends a request instruction to the control unit according to a second period and receives the message data and then dynamically displays the running information of the compressor.
2. The device as claimed in claim 1, wherein the message data includes eight bytes, the first byte and the second byte are the first digital signal, the third byte is the second digital signal, the fourth byte and the fifth byte are the current rotation speed of the compressor, the sixth byte is the temperature of the driver, and the seventh byte and the eighth byte are the fault information of the compressor.
3. The device for collecting and controlling the operation information of the electric compressor as claimed in claim 2, wherein the control unit comprises a main control chip, and the output end of the voltage detection unit is connected to the 18 th pin of the main control chip; the main control chip reads the input voltage signal of the driver collected by the voltage detection unit and converts the input voltage signal into a first digital signal.
4. The operation information acquisition and control device of the electric compressor as claimed in claim 3, wherein the output end of the current detection unit is connected to the 12 th pin of the main control chip; and the main control chip reads the output current signal of the driver collected by the current detection unit and converts the output current signal into a second digital signal.
5. The operation information collection and control device of the electric compressor according to claim 4, wherein the CAN communication unit includes a CAN box; and a first bidirectional input/output port and a second bidirectional input/output port of the CAN communication unit are respectively connected with a 25 th pin and a 26 th pin of the main control chip, and a first output end and a second output end of the CAN communication unit are respectively connected to a CAN box and are in communication connection with the upper computer through the CAN box.
6. The device for collecting and controlling the operation information of the electric compressor according to claim 5, wherein the upper computer comprises a compressor state information display unit, and the compressor state information display unit comprises a compressor parameter setting subunit, a fault state subunit and a start-stop control subunit.
7. The device as claimed in claim 6, wherein the upper computer includes a waveform display unit.
8. The operation information collection and control device for the electric compressor according to claim 7, wherein the first period is 100ms and the second period is 5 ms.
9. A debugging system of an electric compressor, which is characterized by comprising a parameter transmission module and an electric compressor operation information acquisition control device according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747541.9U CN210829684U (en) | 2019-05-23 | 2019-05-23 | Electric compressor operation information acquisition control device and electric compressor debugging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747541.9U CN210829684U (en) | 2019-05-23 | 2019-05-23 | Electric compressor operation information acquisition control device and electric compressor debugging system |
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| CN210829684U true CN210829684U (en) | 2020-06-23 |
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| CN201920747541.9U Active CN210829684U (en) | 2019-05-23 | 2019-05-23 | Electric compressor operation information acquisition control device and electric compressor debugging system |
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