Electrical performance detection circuit and wireless detection test box

Abstract

The utility model discloses an electrical performance detection circuit and a wireless detection test box, and the electrical performance detection circuit comprises an aviation plug, a display module, a switching module, a power module, a driving chip, a CAN chip, a 485 chip, a switching module, and a plurality of double-color lamps. The 485 chip is electrically connected with the aviation plug, and the CAN chip is electrically connected with the aviation plug; the plurality of double-color lamps are electrically connected with the driving chip; the driving chip is electrically connected with the 485 chip, and the driving chip is electrically connected with the CAN chip; the display module is electrically connected with the aviation plug and the power supply module; the switching module is arranged between the aviation plug and the display module. According to the detection circuit, the problems of single communication protocol and weak signal processing capability of the detection circuit in the prior art are solved, and the technical effect of comprehensively detecting the electrical performance of the equipment is realized.

Description

Technical Field

[0001] This application relates to the technical field of electrical performance detection, and particularly to an electrical performance detection circuit and a wireless detection test box. Background Art

[0002] In modern industrial automation, oil exploration and similar fields, electrical performance detection circuits play a crucial role. These circuits not only need to be able to accurately acquire and process electrical signals from various devices, but also need to have high reliability, high stability and multi-channel communication capabilities.

[0003] However, traditional electrical performance detection circuits often have problems such as a single communication protocol and limited signal processing capabilities, making it difficult to meet the modern industrial requirements for high-precision, high-efficiency, and multi-functional detection. Especially with the wide application of communication protocols such as RS-485 and CAN, electrical performance detection circuits need to have the ability to handle multiple communication protocols simultaneously in order to seamlessly connect with devices of different brands and models. Summary of the Utility Model

[0004] Embodiments of this application provide an electrical performance detection circuit and a wireless detection test box, which solve the problems of a single communication protocol and weak signal processing ability of the detection circuit in the prior art, and achieve the technical effect of comprehensively detecting the electrical performance of devices.

[0005] In a first aspect, an embodiment of the utility model provides an electrical performance detection circuit, including a aviation plug, a display module, a switching module, a power module, a driving chip, a CAN chip, a 485 chip, a switching module and a plurality of two-color lights; the 485 chip is electrically connected to the aviation plug, and the CAN chip is electrically connected to the aviation plug; a plurality of the two-color lights are all electrically connected to the driving chip; the driving chip is electrically connected to the 485 chip, and the driving chip is electrically connected to the CAN chip; the display module is electrically connected to the aviation plug, and the display module is electrically connected to the power module; the switching module is arranged between the aviation plug and the display module.

[0006] In combination with the first aspect, in a possible implementation manner, it further includes an anti-backflow module; the anti-backflow module is arranged between the power module and the display module.

[0007] In combination with the first aspect, in a possible implementation manner, the anti-backflow module includes a coil L1, a diode D1 and a capacitor C1; one end of the coil L1 is electrically connected to the power module, the other end of the coil L1 is electrically connected to one end of the diode D1, and the other end of the diode D1 is electrically connected to the display module; one end of the capacitor C1 is connected between the coil L1 and the diode D1, and the other end of the capacitor C1 is grounded.

[0008] In combination with the first aspect, in a possible implementation, a fuse F1 is further included; the fuse F1 is disposed between the switching module and the diode D1.

[0009] In combination with the first aspect, in a possible implementation, a diode D2 is further included; the diode D2 is disposed between the fuse F1 and the diode D1.

[0010] In combination with the first aspect, in a possible implementation, a power supply module, a switch S1, and a switch S2 are further included; the power supply module is electrically connected to the display module; the switch S1 is further disposed between the diode D1 and the display module; the switch S2 is further disposed between the power supply module and the display module.

[0011] In combination with the first aspect, in a possible implementation, the 485 chip includes an MWD485 chip, a data acquisition 485 chip, and a test 485 chip; both the 4851A terminal and the 4851B terminal of the MWD485 chip are connected to the aviation plug, and both the T terminal and the R terminal of the MWD485 chip are connected to the driver chip; both the 4852A terminal and the 4852B terminal of the data acquisition 485 chip are connected to the aviation plug, and both the T terminal and the R terminal of the data acquisition 485 chip are connected to the driver chip; both the 4853A terminal and the 4853B terminal of the test 485 chip are connected to the aviation plug, and both the T terminal and the R terminal of the test 485 chip are connected to the driver chip.

[0012] In combination with the first aspect, in a possible implementation, a wireless module and an antenna socket are further included; the wireless module is electrically connected to the antenna socket; the 485A terminal of the wireless module is connected between the data acquisition 485 chip and the aviation plug, and the 485B terminal of the wireless module is connected between the data acquisition 485 chip and the aviation plug; the power supply terminal of the wireless module is connected between the switch S1 and the diode D2.

[0013] In combination with the first aspect, in a possible implementation, a diode D3 and a diode D4 are further included; one end of the diode D3 is electrically connected between the diode D2 and the switch S1, the other end of the diode D3 is electrically connected to one end of the diode D4, and the other end of the diode D4 is electrically connected to the power supply terminal of the wireless module.

[0014] In a second aspect, an embodiment of the present invention provides a wireless detection test box. The wireless detection test box includes the electrical performance detection circuit according to the first aspect or any possible implementation of the first aspect, and further includes a box body and a cover plate; the electrical performance detection circuit is disposed inside the box body; the cover plate is disposed inside the box body.

[0015] One or more technical solutions provided by this application have at least the following technical effects:

[0016] An electrical performance detection circuit is adopted in an embodiment of the utility model, which includes a connector, a display module, a switching module, a power module, a driving chip, a CAN chip, a 485 chip, and multiple dual-color lights; the 485 chip is electrically connected to the connector and can send RS-485 signals; the CAN chip is electrically connected to the connector; CAN bus communication is realized, and the CAN chip is connected to the connector and can send data on the CAN bus. Multiple dual-color lights are all electrically connected to the driving chip; the driving chip is electrically connected to the 485 chip and the CAN chip; the driving chip can receive signals from the 485 chip and the CAN chip, and after corresponding processing, can control the states of the dual-color lights. The display module is electrically connected to the connector, and the display module can display the results or status information of the electrical performance detection, which is convenient for users to directly view; the display module is electrically connected to the power supply module; the power supply module provides stable power supply for the entire circuit to ensure the normal operation of the circuit. The switching module is arranged between the connector and the display module and is used to switch different signal sources. The problems of single communication protocol and weak signal processing ability in the detection circuit in the prior art are solved, and the technical effect of comprehensively detecting the electrical performance of the device is achieved. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the description of the embodiments of the present utility model will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a circuit diagram of an electrical performance detection circuit provided by an embodiment of this application;

[0019] Figure 2 It is an axonometric view of a wireless detection test box provided by an embodiment of this application;

[0020] Figure 3 It is a schematic diagram of a cover plate provided by an embodiment of this application.

[0021] Reference numerals: 1 - connector; 2 - display module; 3 - power module; 31 - voltage conversion chip; 32 - power socket; 4 - driving chip; 5 - CAN chip; 6 - 485 chip; 61 - MWD485 chip; 62 - data acquisition 485 chip; 63 - test 485 chip; 7 - dual-color light; 8 - anti-backflow module; 9 - power supply module; 10 - wireless module; 11 - antenna socket; 12 - switching module; 13 - box body; 14 - cover plate. Detailed Embodiments

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0024] The embodiments of the present utility model provide an electrical performance detection circuit, as Figure 1 shown, including a aviation plug 1, a display module 2, a switching module 12, a power supply module 3, a driving chip 4, a CAN chip 5, a 485 chip 6, a switching module 12 and a plurality of two-color lights 7; the 485 chip 6 is electrically connected to the aviation plug 1, and the CAN chip 5 is electrically connected to the aviation plug 1; the plurality of two-color lights 7 are all electrically connected to the driving chip 4; the driving chip 4 is electrically connected to the 485 chip 6, and the driving chip 4 is electrically connected to the CAN chip 5; the display module 2 is electrically connected to the aviation plug 1, and the display module 2 is electrically connected to the power supply module 3; the switching module 12 is arranged between the aviation plug 1 and the display module 2.

[0025] Exemplarily, the 485 chip 6 is electrically connected to the aviation plug 1, and the device to be detected is connected to the 485 chip 6 through the USB socket, and can send RS-485 signals to the display module 2; the CAN chip 5 is electrically connected to the aviation plug 1; the device to be detected is connected to the CAN chip 5 through the USB socket to achieve CAN bus communication and can send the data on the CAN bus; while the driver chip 4 can receive the signals from the 485 chip 6 and the CAN chip 5, and after corresponding processing, can control the state of the dual-color light 7. The state of the dual-color light 7 can reflect whether the data communication between the device to be detected and the detection circuit is normal. The display module 2 can display the results or status information of the electrical performance detection, which is convenient for the user to directly view. The switching module 12 is used to switch different signal sources.

[0026] Exemplarily, the electrical performance detection circuit can detect the voltage, current and power of downhole equipment.

[0027] Exemplarily, the power supply module 3 includes a voltage conversion chip 31 and a power socket 32. One end of the voltage conversion chip 31 is electrically connected to the power socket 32, and the other end of the voltage conversion chip 31 is electrically connected to the display module 2.

[0028] In the embodiment of the present application, as Figure 1 shown, it further includes an anti-backflow module 8; the anti-backflow module 8 is arranged between the power supply module 3 and the display module 2.

[0029] In the embodiment of the present application, as Figure 1 shown, the anti-backflow module 8 includes a coil L1, a diode D1 and a capacitor C1; one end of the coil L1 is electrically connected to the power supply module 3, the other end of the coil L1 is electrically connected to one end of the diode D1, and the other end of the diode D1 is electrically connected to the display module 2; one end of the capacitor C1 is connected between the coil L1 and the diode D1, and the other end of the capacitor C1 is grounded.

[0030] Exemplarily, the anti-backflow module 8 can protect the circuit. Specifically, the anti-backflow module 8 mainly prevents the reverse flow of current in the case of unstable power supply or sudden power-off, so as to achieve the technical effect of protecting the circuit from damage.

[0031] In the embodiment of the present application, as Figure 1 shown, it further includes a fuse F1; the fuse F1 is arranged between the switching module 12 and the diode D1.

[0032] Exemplarily, the fuse F1 is a current protection component. When the current passing through it exceeds its rated value, the fuse will heat up and fuse, thus cutting off the circuit and preventing equipment damage caused by excessive current.

[0033] In the embodiment of the present application, as Figure 1As shown, it further includes a diode D2; the diode D2 is disposed between the fuse F1 and the diode D1;

[0034] Exemplarily, the setting of the diode D2 can add a reverse current protection barrier, further enhancing the safety and reliability of the circuit. When an overcurrent occurs in the circuit, the fuse F1 will quickly blow and cut off the circuit, thereby protecting the diode D1, the diode D2, the inductor L1 and the display module 2 from damage.

[0035] In the embodiment of the present application, as Figure 1 shown, it further includes a power supply module 9, a switch S1 and a switch S2; the power supply module 9 is electrically connected to the display module 2; a switch S1 is further disposed between the diode D1 and the display module 2; a switch S2 is further disposed between the power supply module 9 and the display module 2.

[0036] Exemplarily, the power supply module 9 can provide stable voltage and current to the entire circuit. The settings of the switch S1 and the switch S2 enhance the flexibility and safety of the circuit.

[0037] In the embodiment of the present application, as Figure 1 shown, the 485 chip 6 includes an MWD 485 chip 61, a data acquisition 485 chip 62 and a test 485 chip 63; both the 4851A terminal and the 4851B terminal of the MWD 485 chip 61 are connected to the aviation plug 1, and both the T terminal and the R terminal of the MWD 485 chip 61 are connected to the driver chip 4; both the 4852A terminal and the 4852B terminal of the data acquisition 485 chip 62 are connected to the aviation plug 1, and both the T terminal and the R terminal of the data acquisition 485 chip 62 are connected to the driver chip 4; both the 4853A terminal and the 4853B terminal of the test 485 chip 63 are connected to the aviation plug 1, and both the T terminal and the R terminal of the test 485 chip 63 are connected to the driver chip 4.

[0038] Exemplarily, it further includes a plurality of USB interfaces, and the plurality of USB interfaces are all electrically connected to the 485 chip 6; the USB interface is electrically connected to the CAN chip 5. Among them, the USB interface realizes the connection between the USB interface and the RS-485 network through an RS-485 converter.

[0039] Exemplarily, MWD represents measurement while drilling underground. Measurement while drilling is a technology for real-time detection of drilling parameters during the working process. The MWD 485 chip 61, the data acquisition 485 chip 62, the test 485 chip 63 and the CAN chip 5 can all send the data of the detected device to the display module 2 connected to the aviation plug 1 for display, and can also receive the data of the detected device and transfer it to the driver chip 4, and reflect the detection status of the detected device through the dual-color lamp 7.

[0040] In the embodiment of the present application, as Figure 1As shown, it further includes a wireless module 10 and an antenna socket 11; the wireless module 10 is electrically connected to the antenna socket 11; the 485A terminal of the wireless module 10 is connected between the data acquisition 485 chip 62 and the aviation plug 1, and the 485B terminal of the wireless module 10 is connected between the data acquisition 485 chip 62 and the aviation plug 1; the power supply terminal of the wireless module 10 is connected between the switch S1 and the diode D2.

[0041] Exemplarily, the wireless module 10 enables the detection circuit to not only communicate in a wired manner but also transmit data wirelessly, thereby increasing the flexibility and communication range of the system.

[0042] Exemplarily, in terms of wired communication, data is transmitted between the MWD485 chip 61, the data acquisition 485 chip 62, the test 485 chip 63 and the device under test through the RS-485 network. In terms of wireless communication, the data is converted into wireless signals by the wireless module 10 and sent and received through the antenna.

[0043] In the embodiment of the present application, as Figure 1 shown, it further includes a diode D3 and a diode D4; one end of the diode D3 is electrically connected between the diode D2 and the switch S1, the other end of the diode D3 is electrically connected to one end of the diode D4, and the other end of the diode D4 is electrically connected to the power supply terminal of the wireless module 10.

[0044] Exemplarily, the diode D3 can prevent the current from flowing back to the power supply terminal after the switch S1 is turned off. The diode D4 is also a protection diode to ensure that the current can only flow unidirectionally to the power supply terminal of the wireless module 10.

[0045] This electrical performance detection circuit integrates multiple communication protocols and display functions, thereby realizing the comprehensive detection of electrical performance. Protection and control components such as an anti-backflow module 8, a fuse F1, and a switch are added to the circuit to ensure the safe and stable operation of the circuit. At the same time, the addition of the wireless module 10 makes data transmission more flexible and convenient, meeting the test requirements in various complex environments.

[0046] The embodiment of the present utility model provides a wireless detection test box, as Figure 2 and Figure 3 shown, the wireless detection test box includes an electrical performance detection circuit, and further includes a box body 13 and a cover plate 14; the electrical performance detection circuit is arranged inside the box body 13; the cover plate 14 is arranged inside the box body 13.

[0047] Exemplarily, the wireless detection test box uses the box body 13 to provide a good working environment for the electrical performance detection circuit, and the high precision and reliability of the electrical performance detection circuit can realize the comprehensive detection and analysis of the device or signal under test. At the same time, through a reasonable interface layout and a detachable design, the device also has good operability and maintainability.

[0048] The various embodiments in this specification are described in a progressive manner. For the same or similar parts among the various embodiments, reference can be made to each other, and the key points of each embodiment are the differences from other embodiments.

[0049] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. An electrical performance detection circuit, characterized in that: It comprises an aviation plug (1), a display module (2), a switching module (12), a power module (3), a driver chip (4), a CAN chip (5), a 485 chip (6), a switching module (12) and a plurality of two-color lights (7); The 485 chip (6) is electrically connected to the aviation plug (1), and the CAN chip (5) is electrically connected to the aviation plug (1); The plurality of bicolor lamps (7) are all electrically connected to the driving chip (4); The driver chip (4) is electrically connected to the 485 chip (6), and the driver chip (4) is electrically connected to the CAN chip (5); The display module (2) is electrically connected to the aviation plug (1), and the display module (2) is electrically connected to the power module (3); The switching module (12) is arranged between the aviation plug (1) and the display module (2).

2. The electrical performance detection circuit according to claim 1, characterized in that: It also includes a backflow prevention module (8); The backflow prevention module (8) is arranged between the power module (3) and the display module (2).

3. The electrical performance detection circuit according to claim 2, characterized in that: The anti-backflow module (8) comprises a coil L1, a diode D1 and a capacitor C1; One end of the coil L1 is electrically connected to the power module (3), the other end of the coil L1 is electrically connected to one end of the diode D1, and the other end of the diode D1 is electrically connected to the display module (2); One end of the capacitor C1 is connected between the coil L1 and the diode D1 , and the other end of the capacitor C1 is grounded.

4. The electrical performance detection circuit according to claim 3, characterized in that: Also includes fuse F1; The fuse F1 is arranged between the switching module (12) and the diode D1.

5. The electrical performance detection circuit according to claim 4, characterized in that: Also includes a diode D2; The diode D2 is disposed between the fuse F1 and the diode D1.

6. The electrical performance detection circuit according to claim 5, characterized in that: It also includes a power supply module (9), a switch S1 and a switch S2; The power supply module (9) is electrically connected to the display module (2); The switch S1 is also provided between the diode D1 and the display module (2); The switch S2 is also provided between the power supply module (9) and the display module (2).

7. The electrical performance detection circuit according to claim 6, characterized in that: The 485 chip (6) includes an MWD485 chip (61), a data acquisition 485 chip (62) and a test 485 chip (63); The 4851A end and the 4851B end of the MWD485 chip (61) are both connected to the aviation plug (1), and the T end and the R end of the MWD485 chip (61) are both connected to the driving chip (4); The 4852A end and the 4852B end of the data acquisition 485 chip (62) are both connected to the aviation plug (1), and the T end and the R end of the data acquisition 485 chip (62) are both connected to the driving chip (4); The 4853A end and the 4853B end of the test 485 chip (63) are both connected to the aviation plug (1), and the T end and the R end of the test 485 chip (63) are both connected to the driving chip (4).

8. The electrical performance detection circuit according to claim 7, characterized in that: It also includes a wireless module (10) and an antenna socket (11); The wireless module (10) is electrically connected to the antenna socket (11); The 485A end of the wireless module (10) is connected between the data acquisition 485 chip (62) and the aviation plug (1), and the 485B end of the wireless module (10) is connected between the data acquisition 485 chip (62) and the aviation plug (1); The power supply end of the wireless module (10) is connected between the switch S1 and the diode D2.

9. The electrical performance detection circuit according to claim 8, characterized in that: Also includes a diode D3 and a diode D4; One end of the diode D3 is electrically connected between the diode D2 and the switch S1, the other end of the diode D3 is electrically connected to one end of the diode D4, and the other end of the diode D4 is electrically connected to the power supply end of the wireless module (10).

10. A wireless detection test box, comprising the electrical performance detection circuit according to any one of claims 1 to 9, characterized in that: It also includes a box body (13) and a cover plate (14); The electrical performance detection circuit is arranged in the box (13); The cover plate (14) is arranged in the box body (13).

Images