Testing platform and method suitable for wireless temperature measurement

Abstract

The invention belongs to the technical field of wireless temperature measurement, and discloses a test platform and method suitable for wireless temperature measurement. The test platform comprises a code scanning gun, a wireless temperature measurement detection system, a plurality of wireless receivers, a plurality of serial port servers, a switch and a current source. The system overcomes the defects that the prior art is not suitable for detecting mass sensors and prolonging the delivery cycle, and has the advantages of convenience and flexibility in installation, high temperature measurement precision, good real-time performance, stable data transmission, safety, reliability, good environmental adaptability, easiness in integration, low cost and the like; the problems of long detection period, complex detection steps, low efficiency and the like in the prior art are solved, the detection efficiency of the sensor is improved, detection of a large batch of sensors can be coped with, and the delivery period is shortened.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of wireless temperature measurement, and in particular to a test platform and method suitable for wireless temperature measurement. Background Art

[0002] In the fields of industrial production, power transmission, equipment maintenance, etc., real-time monitoring and early warning of object temperature are crucial. Temperature detection is an important part of ensuring safe industrial operation. The wireless temperature measurement system can measure the temperature of the surface or contact of high-voltage live objects in real time, such as the operating temperature of exposed contacts in high-voltage switch cabinets, busbar connections, outdoor switches and transformers. Nowadays, temperature sensors are widely used in the field of industrial control. In order to ensure the yield rate of sensors, strict factory inspection is required. Existing technologies cannot cope with the detection of large quantities of sensors, and there is a great demand for test platforms and methods suitable for wireless temperature measurement. Summary of the invention

[0003] The purpose of the present invention is to provide a test platform and method suitable for wireless temperature measurement, so as to improve the detection efficiency and shorten the delivery cycle.

[0004] To achieve the above object, the present invention provides a test platform suitable for wireless temperature measurement, including a barcode scanner, a wireless temperature measurement detection system, a plurality of wireless receivers, a plurality of serial port servers, a switch, and a current source;

[0005] Several wireless receivers are connected to the serial device server, which is then connected to the switch;

[0006] A current source is connected to the switch;

[0007] The wireless temperature measurement detection system connects the barcode scanner and the switch.

[0008] Furthermore, it also includes a plurality of intelligent low-voltage bus temperature measurement systems, which are connected to the serial port server, and the serial port server is further connected to the switch.

[0009] Furthermore, the wireless receiver includes a communication module and an antenna, and an identification code including frequency band information and address information is attached to the surface of the wireless receiver.

[0010] Furthermore, the serial port server is an RS485 serial port server, and the serial port is configured with eight data bits, one stop bit, and no check bit.

[0011] Furthermore, it also includes several sensors, network cables and aging racks. The aging rack is provided with wires, and several sensors are bound and placed on the aging rack. The current source is connected to the aging rack through the wires. The current source is connected to the switch and the wireless temperature measurement detection system through the network cable to communicate. The current source is turned on and the starting current values ​​of several sensors are set.

[0012] Furthermore, the identification code is a QR code or a barcode.

[0013] To achieve the above object, the present invention also provides a test method suitable for wireless temperature measurement, which comprises the following steps:

[0014] Step 1: The wireless receiver has an identification code including frequency band information and address information on its surface. Use a barcode scanner to enter the identification code information and transmit it to the wireless temperature measurement detection system. The wireless temperature measurement detection system resets the address information and frequency band information of the wireless receiver.

[0015] Step 2: After all wireless receiver identification code information is successfully entered, restart the wireless receiver, and the address information and frequency band information of the wireless receiver reset by the wireless temperature detection system will take effect;

[0016] Step 3: Bind and place several sensors on the aging rack, which is provided with wires. Bind and place several sensors on the aging rack, connect the current source to the aging rack through the wires, connect the current source to the switch and communicate with the wireless temperature measurement detection system through the network cable, turn on the current source, and set the starting current values ​​of several sensors;

[0017] Step 4: After the data is stable, the wireless temperature detection system obtains the sensor information by communicating with the wireless receiver;

[0018] Step 5: Use the intelligent low-voltage bus temperature measurement system to obtain the reference temperature. The wireless temperature measurement detection system communicates with the intelligent low-voltage bus temperature measurement system to obtain and record the current ambient temperature. When a whole detection cycle is completed, the temperature of each acquisition cycle of the sensor is compared with the ambient temperature at that time. If the error between the obtained sensor temperature and the reference temperature is within the valid range, the sensor is qualified.

[0019] Furthermore, the test method also includes step 6: after the detection cycle of the wireless temperature measurement detection system is completed, a sensor detection report is generated, the cause of the detection failure is analyzed, and for the detection failure report, the sensor and the wireless receiver are replaced to re-detect.

[0020] Furthermore, in step 4, the wireless temperature measurement and detection system obtains sensor information including temperature information, voltage information, signal information, and transmission and reception frequency information by communicating with the wireless receiver.

[0021] Furthermore, the wireless temperature measurement and detection system uses the MODBUS-RTU communication protocol to communicate with the wireless receiver and the intelligent low-voltage bus temperature measurement system through the serial port server and the switch.

[0022] Beneficial effects:

[0023] The present invention provides a test platform and method suitable for wireless temperature measurement, which have the advantages of convenient and flexible installation, high temperature measurement accuracy, good real-time performance, stable data transmission, safety and reliability, good environmental adaptability, easy integration, low cost, etc., solves the problems of long detection cycle, complex detection steps, low efficiency and the like in the prior art, improves the detection efficiency of sensors, can cope with the detection of large quantities of sensors, and shortens the delivery cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a diagram of the composition of a test platform suitable for wireless temperature measurement;

[0025] Figure 2 A flow chart of a method suitable for wireless temperature measurement. DETAILED DESCRIPTION

[0026] Embodiment 1

[0027] The preferred mechanism and implementation method of the present invention are further described below in conjunction with the accompanying drawings and specific implementation methods.

[0028] like Figure 1 As shown, the embodiment of the present invention discloses a technical solution of a test platform suitable for wireless temperature measurement. The test platform includes a barcode scanner, a wireless temperature measurement detection system, a plurality of wireless receivers, a plurality of serial port servers, a switch, and a current source.

[0029] The function of the current source is to output current, and the wireless temperature detection system connects the barcode scanner and the switch.

[0030] The wireless receiver is affixed with an identification code including frequency band information and address information. Use a barcode scanner to enter the identification code information and transmit it to the wireless temperature measurement detection system. The wireless temperature measurement detection system resets the address information and frequency band information of the wireless receiver. After all the wireless receiver identification code information is successfully entered, restart the wireless receiver, and the address information and frequency band information of the wireless receiver reset by the wireless temperature measurement detection system will take effect.

[0031] Several wireless receivers are connected to the serial port server, which is then connected to the switch, and the current source is connected to the switch. The serial port server converts the serial port information of the wireless receiver into network data, and the switch can realize the interaction of network data. Therefore, the wireless temperature measurement detection system can communicate with the wireless receiver through the serial port server and the switch. One wireless receiver can obtain information from 20 sensors, and one serial port server can connect 8-16 wireless receivers.

[0032] Embodiment 2

[0033] The connection method of this embodiment is basically the same as that of the first embodiment, except that:

[0034] It also includes several sensors, network cables and aging racks. The aging rack is provided with wires. Several sensors are bound and placed on the aging rack. The current source is connected to the aging rack through the wires (in series). The current source is connected to the switch and the wireless temperature measurement and detection system through the network cable. The Udp protocol is used to communicate. The current source is turned on and the starting current values ​​of several sensors are set. The wireless temperature measurement and detection system controls the output current of the current source through the network protocol.

[0035] It also includes several intelligent low-voltage bus temperature measurement systems, which are connected to the serial port server, and the serial port server is connected to the switch, so that the wireless temperature measurement detection system can communicate with the intelligent low-voltage bus temperature measurement system through the serial port server and the switch. The intelligent low-voltage bus temperature measurement system obtains the reference temperature, and the wireless temperature measurement detection system communicates with the intelligent low-voltage bus temperature measurement system to obtain and record the current ambient temperature. When a whole detection cycle is completed, the temperature of each acquisition cycle of the sensor is compared with the ambient temperature at that time. If the error between the obtained sensor temperature and the reference temperature is within the effective range, the sensor is qualified.

[0036] Embodiment 3

[0037] The connection method of this embodiment is basically the same as that of the second embodiment, except that:

[0038] The wireless receiver includes a communication module and an antenna. The surface of the wireless receiver is affixed with an identification code including frequency band information and address information. The identification code can be a QR code or a bar code. The serial port server is an RS485 serial port server. The serial port is configured with eight data bits, one stop bit, and no check bit.

[0039] Embodiment 4

[0040] A test method suitable for wireless temperature measurement, the test method comprising the following steps:

[0041] Step 1: The wireless receiver has an identification code including frequency band information and address information on its surface. Use a barcode scanner to enter the identification code information and transmit it to the wireless temperature measurement detection system. The wireless temperature measurement detection system resets the address information and frequency band information of the wireless receiver.

[0042] Step 2: After all wireless receiver identification code information is successfully entered, restart the wireless receiver, and the address information and frequency band information of the wireless receiver reset by the wireless temperature detection system will take effect;

[0043] Step 3: Bind several sensors and place them on the aging rack. The aging rack is provided with wires. Bind several sensors and place them on the aging rack. The current source is connected to the aging rack through the wires. The current source is connected to the wireless temperature measurement detection system through the network cable. The current source and the wireless temperature measurement detection system use the Udp protocol to communicate. Turn on the current source and set the starting current values ​​of several sensors.

[0044] Step 4: After the data is stable, the wireless temperature detection system obtains the sensor information by communicating with the wireless receiver;

[0045] Step 5: Use the intelligent low-voltage bus temperature measurement system to obtain the reference temperature. The wireless temperature measurement detection system communicates with the intelligent low-voltage bus temperature measurement system to obtain and record the current ambient temperature. When a whole detection cycle is completed, the temperature of each acquisition cycle of the sensor is compared with the ambient temperature at that time. If the error between the obtained sensor temperature and the reference temperature is within the valid range, the sensor is qualified.

[0046] Embodiment 5

[0047] The method of this embodiment is basically the same as that of the fourth embodiment, except that the testing method further comprises:

[0048] Step 6: After the wireless temperature measurement system completes the detection cycle, generate a sensor detection report and analyze the reasons for the detection failure. For reports of detection failure, re-detect by replacing the sensor and wireless receiver.

[0049] Step 4: The wireless temperature measurement detection system obtains sensor information including temperature information, voltage information, signal information, and transmission and reception frequency information by communicating with the wireless receiver.

[0050] The wireless temperature measurement and detection system uses the MODBUS-RTU communication protocol to communicate with the wireless receiver and the intelligent low-voltage bus temperature measurement system through the serial port server and the switch.

[0051] The present invention overcomes the shortcomings of existing testing technologies, such as being unsuitable for detecting large quantities of sensors and extending the delivery cycle, and provides a testing platform and method suitable for wireless temperature measurement, which has the advantages of convenient and flexible installation, high temperature measurement accuracy, good real-time performance, stable data transmission, safety and reliability, good environmental adaptability, easy integration, and low cost. It solves the problems of long detection cycle, complex detection steps, and low efficiency in the prior art, improves the detection efficiency of sensors, can cope with the detection of large quantities of sensors, and shortens the delivery cycle.

[0052] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A test platform suitable for wireless temperature measurement, characterized in that: Including barcode scanner, wireless temperature detection system, several wireless receivers, several serial port servers, switches, and current sources; Several wireless receivers are connected to the serial device server, which is then connected to the switch; A current source is connected to the switch; The wireless temperature measurement detection system connects the barcode scanner and the switch.

2. The test platform suitable for wireless temperature measurement according to claim 1, characterized in that: It also includes several intelligent low-voltage bus temperature measurement systems, which are connected to the serial port server, and the serial port server is further connected to the switch.

3. The test platform suitable for wireless temperature measurement according to claim 1, characterized in that: The wireless receiver includes a communication module and an antenna, and an identification code including frequency band information and address information is attached to the surface of the wireless receiver.

4. The test platform suitable for wireless temperature measurement according to claim 1, characterized in that: The serial port server is an RS485 serial port server, and the serial port configuration is eight data bits, one stop bit, and no check bit.

5. The test platform suitable for wireless temperature measurement according to claim 1 or 2, characterized in that: It also includes several sensors, network cables and aging racks. The aging rack is provided with wires. Several sensors are bound and placed on the aging rack. The current source is connected to the aging rack through the wires. The current source is connected to the switch and the wireless temperature measurement detection system through the network cable to communicate. The current source is turned on and the starting current values ​​of several sensors are set.

6. The test platform suitable for wireless temperature measurement according to claim 3, characterized in that: The identification code is a QR code or a bar code.

7. A test method suitable for wireless temperature measurement, characterized in that: The following steps are involved: Step 1: The wireless receiver has an identification code including frequency band information and address information on its surface. Use a barcode scanner to enter the identification code information and transmit it to the wireless temperature measurement detection system. The wireless temperature measurement detection system resets the address information and frequency band information of the wireless receiver. Step 2: After all wireless receiver identification code information is successfully entered, restart the wireless receiver, and the address information and frequency band information of the wireless receiver reset by the wireless temperature detection system will take effect; Step 3: Bind and place several sensors on the aging rack, which is provided with wires. Bind and place several sensors on the aging rack, connect the current source to the aging rack through the wires, connect the current source to the switch and the wireless temperature measurement detection system through the network cable, turn on the current source, and set the starting current values ​​of several sensors; Step 4: After the data is stable, the wireless temperature detection system obtains the sensor information by communicating with the wireless receiver; Step 5: Use the intelligent low-voltage bus temperature measurement system to obtain the reference temperature. The wireless temperature measurement detection system communicates with the intelligent low-voltage bus temperature measurement system to obtain and record the current ambient temperature. When a whole detection cycle is completed, the temperature of each acquisition cycle of the sensor is compared with the ambient temperature at that time. If the error between the obtained sensor temperature and the reference temperature is within the valid range, the sensor is qualified.

8. The test method for wireless temperature measurement according to claim 7, characterized in that: The method also includes step 6: after the detection cycle of the wireless temperature measurement detection system is completed, a detection report of the sensor is generated, the reasons for the detection failure are analyzed, and for the detection failure report, the sensor and the wireless receiver are replaced to re-detect.

9. The test method for wireless temperature measurement according to claim 7, characterized in that: Step 4: The wireless temperature measurement detection system obtains sensor information including temperature information, voltage information, signal information, and transmission and reception frequency information by communicating with the wireless receiver.

10. The test method for wireless temperature measurement according to claim 7, characterized in that: The wireless temperature measurement and detection system uses the MODBUS-RTU communication protocol to communicate with the wireless receiver and the intelligent low-voltage bus temperature measurement system through a serial port server and a switch.

Images