Electronic detonator foot wire multi-type switching system and device based on relay parallel connection

Abstract

This invention belongs to the field of detonator wire testing technology, specifically a multi-type switching system and device for electronic detonator leads based on relay parallel connection, including a host computer; the host computer is connected to a test host device via signals; the test host device is connected to multiple sets of communication wire switching devices via signals; and the communication wire switching devices are connected to a module terminal test device via signals.

Description

Technical Field

[0001] This invention belongs to the field of detonator wire testing technology, specifically a multi-type switching system and device for electronic detonator leads based on relay parallel connection. Background Technology

[0002] Currently, in the electronic detonator industry, the application environment of electronic detonators in the field is very complex, and the requirements for the stability of electronic detonator communication are very strict. The communication performance of electronic detonators varies depending on the terminal load in the application environment.

[0003] In existing technologies, the characteristics of electronic detonator terminal load affecting communication performance have two key dimensions. The first key dimension is the communication cable (material and length) between the load terminal and the electronic detonator controller. The second dimension is the electronic detonator configuration of the terminal (electronic detonator lead wire length and number of electronic detonators). The communication cable materials used in the field are diverse, and the connection length ranges from tens of meters to one thousand meters. The number of electronic detonators loaded in different applications ranges from a few to hundreds, and the lead wire lengths used for electronic detonators also have many specifications.

[0004] Long-term observation revealed that the configuration of electronic detonators in field applications is extremely complex. Without comprehensive testing covering all application terminals, the communication stability of electronic detonators is potentially at risk, compromising its stability in field applications. However, due to the diversity of communication terminal applications, creating a test environment using physical equivalents is limited by space constraints and requires significant testing time, resulting in low efficiency and hindering the rapid achievement of testing objectives, severely impacting the product development progress of electronic detonator communication systems. Currently, the electronic detonator industry typically uses equivalent loads to simulate various terminal configurations to test communication stability. This involves using equivalent resistance in series and equivalent capacitance in parallel for the communication medium (communication cable, cable length, lead length, etc.) to simulate an equivalent load. However, testing has shown significant differences between simulated loads and actual loads, potentially misleading the accuracy of test results. In response to the rapidly developing industry demands for electronic detonators, the development of electronic detonators requires a testing system that closely approximates real-world application environments, while also demanding high standards in terms of test coverage, testing efficiency, and floor space.

[0005] Therefore, the present invention provides a multi-type switching system and device for electronic detonator leads based on relay parallel connection. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve at least one of the problems mentioned in the background technology, a multi-type switching system and device for electronic detonator leads based on relay parallel connection is proposed.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a multi-type switching system for electronic detonator leads based on relay parallel connection, including a host computer; the host computer is connected to a test host device via a signal; the test host device is connected to multiple sets of communication cable switching devices via a signal; and the communication cable switching devices are connected to a module terminal test device via a signal.

[0008] Preferably, the module terminal testing equipment includes a connection harness interface input module; the connection harness interface input module is connected to an electronic module motion detection board module via a signal; the electronic module motion detection board module is connected to an electronic module pin wire switching board module via a signal; the electronic module pin wire switching board module is connected to a connection harness interface output module via a signal; the connection harness interface output module and the connection harness interface input module are connected via a signal.

[0009] Preferably, the electronic module motion detection board module includes a first interface; the first interface is connected to an MCU electronic module via a signal; the MCU electronic module is connected to an electronic module motion detection module via a signal; the electronic module motion detection module is connected to an electronic module via a signal; the electronic module lead wire switching board module includes an electronic module switching module; the electronic module switching module and the electronic module in the electronic module motion detection board module are connected via a signal; the electronic module switching module is connected to an MCU-controlled lead wire switching module via a signal; the MCU-controlled lead wire switching module is connected to a second interface via a signal; the electronic module switching module is connected to a lead wire module via a signal; and the lead wire module is connected to a first electronic detonator bus interface via a signal.

[0010] Preferably, the connection harness inlet module includes a second electronic detonator bus interface and a third interface; the connection harness outlet module includes a third electronic detonator bus interface and a fourth interface; the fourth interface and the third interface are connected by a signal; the first electronic detonator bus interface, the second electronic detonator bus interface and the third electronic detonator bus interface are all connected by a signal; the first interface, the second interface, the third interface and the fourth interface are all connected by a signal.

[0011] A multi-type switching device for electronic detonator leads based on relay parallel connection is disclosed. This switching device is applicable to a multi-type switching system for electronic detonator leads based on relay parallel connection as described above. It includes a switching test device body; a support frame is fixedly connected to the side wall of the switching test device body; the support frames are a pair and symmetrically arranged on both sides of the switching test device body; support legs are fixedly connected to the ends of the support frames; the support legs are a pair and symmetrically arranged on both sides of the support frames; a support base is fixedly connected to the bottom end of each support leg; a fixed seat is fixedly connected to the top end of each support leg; and a first sliding groove is formed in the middle of the fixed seat. This step, by providing the support frame, support legs, support base, and fixed seat, allows for the support of multiple sets of switching test device bodies when used in combination by the operator, thereby facilitating the placement and support of the switching test device bodies, saving equipment placement space, and facilitating serial connection between multiple sets of switching test device bodies via an electronic module bus.

[0012] Preferably, a sliding plate is provided in the middle of the first sliding groove; the sliding plate is slidably engaged with the first sliding groove; a spring is connected between the first sliding groove and the sliding plate; one end of the spring is fixedly connected to the bottom of the sliding plate, and the other end is fixedly connected to the bottom of the first sliding groove; this step, by providing a sliding plate and a spring, can buffer the process of the support seat descending along the fixed seat after the operator inserts the support seat into the fixed seat, thereby allowing the support seat to descend slowly along the fixed seat, reducing the possibility of the support seat descent too quickly along the fixed seat and causing collisions and violent vibrations, reducing the possibility of loose joints and damage to the switching test equipment body caused by violent vibrations, and improving the stability of the switching test equipment body during operation.

[0013] Preferably, a second sliding groove is formed at the bottom of the first sliding groove; a support rod is fixedly connected to the bottom of the sliding plate; a limiting plate is fixedly connected to the bottom of the support rod; the support rod and the limiting plate slide inside the second sliding groove; the spring is sleeved on the outside of the support rod. This step, by providing the second sliding groove and the support rod, can support the spring when it pushes the sliding plate, thereby reducing the twisting and deformation of the spring when it pushes the sliding plate, and improving the stability of the spring when it pushes the sliding plate. By providing the limiting plate, the sliding of the support rod can be limited, thereby reducing the possibility of the support rod coming out of the second sliding groove.

[0014] Preferably, the top of the fixed base is provided with a guide groove; this step, by providing a guide groove, can guide the worker when inserting the support base into the fixed base, thereby facilitating the worker to insert the support base into the fixed base and improving the worker's work efficiency.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. The present invention discloses a multi-type switching system and device for electronic detonator leads based on relay parallel connection. When this device is used for electronic detonator load testing, it can save testing space, save manpower, and improve testing efficiency. Each device is equipped with 25 electronic modules with fixed-type leads. The device can control the 25 electronic modules to connect to the electronic module communication bus according to the testing requirements through 25 relays connected in parallel. The lead lengths of the 25 electronic modules are different. The device uses a metal casing to store the leads at the back of the device. The metal casing facilitates storage and saves space. The devices are interconnected via electronic modules. The system uses a serial bus connection to configure the total number of electronic modules required for testing. All devices interact with each other through the host of the testing system. By switching the on / off state of multiple device relays, the system can freely configure the types and quantities of electronic detonator pins to be tested. It can automate testing with multiple configuration functions. Theoretically, it can achieve infinite pin lengths and types, arbitrary numbers of electronic modules, and infinite communication line types for switching and free combination. It also has automated testing capabilities, which can greatly accelerate the testing process and greatly help in testing the communication stability of electronic detonators.

[0017] 2. The present invention provides a multi-type switching system and device for electronic detonator leads based on relay parallel connection. By providing a support frame, support legs, support base and fixing base, it can support multiple sets of switching test equipment bodies when the operator uses them in combination, thereby facilitating the placement and support of the switching test equipment bodies, saving equipment placement space, and facilitating serial connection between multiple sets of switching test equipment bodies through electronic module bus. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a system configuration diagram of the automatic testing equipment in this invention;

[0020] Figure 2 This is a schematic diagram of the structure of the module terminal testing device in this invention;

[0021] Figure 3 This is a schematic diagram of the isolation principle of the module terminal testing equipment system in this invention;

[0022] Figure 4 This is a structural schematic diagram of the key principle of lead wire switching in this invention;

[0023] Figure 5 This is a circuit diagram of the non-polar 485 communication circuit in this invention;

[0024] Figure 6 This is a schematic diagram of the structure of the electronic module indicator light in this invention;

[0025] Figure 7 This is a perspective view of the present invention;

[0026] Figure 8 This is a cross-sectional view of the first sliding groove in this invention;

[0027] Figure 9 This is a bottom view of the support frame and support legs in this invention;

[0028] Legend:

[0029] 1. Switch test equipment body; 11. Support frame; 12. Support leg; 13. Support base; 14. Fixed base; 15. First sliding groove; 2. Sliding plate; 21. Spring; 3. Second sliding groove; 31. Support rod; 32. Limiting plate; 4. Guide groove; 5. Anti-slip texture; 51. Limiting groove. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Specific implementation examples are given below.

[0032] like Figures 1 to 6As shown in the embodiment of the present invention, a multi-type switching system and device for electronic detonator leads based on relay parallel connection includes a host computer; the host computer is connected to a test host device via a signal; the test host device is connected to multiple sets of communication cable switching devices via a signal; the communication cable switching devices are connected to a module terminal test device via a signal; the module terminal test device includes a connection harness interface module; the connection harness interface module is connected to an electronic module action detection board module via a signal; the electronic module action detection board module is connected to an electronic module lead switching board module via a signal; the electronic module lead switching board module is connected to a connection... A wiring harness interface output module; the wiring harness interface output module and the wiring harness interface input module are connected via signals; the electronic module action detection board module includes a first 485 interface; the first 485 interface is connected to an MCU electronic module via signals; the MCU electronic module is connected to an electronic module action detection module via signals; the electronic module action detection module is connected to an electronic module via signals; the electronic module pin cable switching board module includes an electronic module switching module; the electronic module switching module and the electronic module in the electronic module action detection board module are connected via signals; the electronic module switching module is connected to an MCU-controlled pin cable switching module via signals; The MCU control pin switching module is connected to a second 485 interface via a signal; the electronic module switching module is connected to a pin module via a signal; the pin module is connected to a first electronic detonator bus interface via a signal; the connection harness interface input module includes a second electronic detonator bus interface and a third 485 interface; the connection harness interface output module includes a third electronic detonator bus interface and a fourth 485 interface; the fourth 485 interface and the third 485 interface are connected via a signal; the first electronic detonator bus interface, the second electronic detonator bus interface, and the third electronic detonator bus interface are all connected via a signal; the first 485 interface, the second 485 interface, the third 485 interface... Both the 485 interface and the fourth 485 interface are connected via signal. During operation, the module terminal test equipment uses 485 communication, and the equipment acts as a 485 slave device. The module terminal test equipment consists of two parts: a pin switching function board, which is responsible for the connection and disconnection of 25 pins, and a module detonation detection board. Functionally, the module terminal test equipment has the ability to freely connect 25 electronic modules, has the ability to detonate 25 electronic modules, collect false action data, and has the ability to measure detonation delay. The pin switching function board and the module detonation detection board are all powered by a 24V switching power supply. The 24V is converted to an isolated 5V power supply to power their respective boards, thus achieving power isolation.The electronic detonator control and testing section achieves electrical isolation between the electronic detonator communication bus and the testing system through optocoupler isolation testing. The lead wire switching system uses relays to achieve electrical isolation between the electronic detonator bus communication and control circuits. When this equipment is used for electronic detonator load testing, it saves testing space and manpower, and improves testing efficiency. Each unit contains 25 electronic modules with fixed lead wires. The equipment can control these 25 electronic modules to be connected to the electronic module communication bus according to the testing requirements via 25 relays connected in parallel. The lead wires of the 25 electronic modules are of varying lengths. The equipment uses a metal casing to store the lead wires at the back of the device, facilitating storage and saving costs. The system allocates space for equipment placement. The devices are serially connected via an electronic module bus. The total number of electronic modules required for testing can be configured. All devices interact with each other through the host of the testing system. By switching the on / off state of multiple device relays, the types and quantities of electronic detonator leads to be tested can be freely configured. It can automate testing with multiple configuration functions. Theoretically, it can achieve unlimited lead lengths and types, arbitrary numbers of electronic modules, and unlimited communication line types for switching and free combination. It also has automated testing functions, which can greatly speed up the testing process and greatly help in testing the communication stability of electronic detonators.

[0033] like Figures 7 to 9 As shown, a multi-type switching device for electronic detonator leads based on relay parallel connection is disclosed. This switching device is applicable to the aforementioned multi-type switching system for electronic detonator leads based on relay parallel connection. It includes a switching test device body 1; a support frame 11 is fixedly connected to the side wall of the switching test device body 1; the support frames 11 are a pair and symmetrically arranged on both sides of the switching test device body 1; support legs 12 are fixedly connected to the ends of the support frames 11; the support legs 12 are two pairs and symmetrically arranged on both sides of the support frames 11; a support base 13 is fixedly connected to the bottom end of the support leg 12; a fixed base 14 is fixedly connected to the top end of the support leg 12; a first sliding groove 15 is provided in the middle of the fixed base 14; during operation, When staff need to combine and place multiple sets of switching test equipment bodies 1, they insert the support base 13 of one set of devices into the fixed base 14 of another set of devices by aligning the bottom of the support base 13 of one set of devices with the fixed base 14 of another set of devices. At this time, the support frame 11, support leg 12, support base 13 and fixed base 14 will support multiple sets of devices. This step, by providing the support frame 11, support leg 12, support base 13 and fixed base 14, can support multiple sets of switching test equipment bodies 1 when staff use them in combination, thereby facilitating the placement and support of the switching test equipment bodies 1, saving equipment placement space, and facilitating serial connection between multiple sets of switching test equipment bodies 1 through electronic module bus.

[0034] Furthermore, such as Figures 7 to 9As shown, a sliding plate 2 is provided in the middle of the first sliding groove 15; the sliding plate 2 is slidably engaged with the first sliding groove 15; a spring 21 is connected between the first sliding groove 15 and the sliding plate 2; one end of the spring 21 is fixedly connected to the bottom of the sliding plate 2, and the other end is fixedly connected to the bottom of the first sliding groove 15; this step, by providing the sliding plate 2 and the spring 21, can buffer the process of the support seat 13 descending along the fixed seat 14 after the worker inserts the support seat 13 into the fixed seat 14, thereby allowing the support seat 13 to descend slowly along the fixed seat 14, reducing the situation of the support seat 13 falling too fast along the fixed seat 14 and causing collisions and violent vibrations, reducing the situation of the joints of the switching test equipment body 1 becoming loose and damaged due to violent vibrations, and improving the stability of the switching test equipment body 1 during operation.

[0035] Furthermore, such as Figure 8 and Figure 9 As shown, a second sliding groove 3 is provided at the bottom of the first sliding groove 15; a support rod 31 is fixedly connected to the bottom of the sliding plate 2; a limiting plate 32 is fixedly connected to the bottom of the support rod 31; the support rod 31 and the limiting plate 32 slide inside the second sliding groove 3; the spring 21 is sleeved on the outside of the support rod 31. This step, by providing the second sliding groove 3 and the support rod 31, can support the spring 21 when it pushes the sliding plate 2, thereby reducing the twisting and deformation of the spring 21 when it pushes the sliding plate 2, and improving the stability of the spring 21 when it pushes the sliding plate 2. By providing the limiting plate 32, the sliding of the support rod 31 can be limited, thereby reducing the possibility of the support rod 31 coming out of the second sliding groove 3.

[0036] Furthermore, such as Figure 7 and Figure 8 As shown, the top of the fixed base 14 is provided with a guide groove 4; by providing the guide groove 4, this step can guide the process when the worker inserts the support base 13 into the fixed base 14, thereby making it easier for the worker to insert the support base 13 into the fixed base 14 and improving the worker's work efficiency.

[0037] Furthermore, such as Figure 8 and Figure 9 As shown, the top of the sliding plate 2 is fixed with anti-slip texture 5; the bottom of the support base 13 is provided with a limiting groove 51; the anti-slip texture 5 and the limiting groove 51 are set in corresponding shapes; by providing anti-slip texture 5 and limiting groove 51, this step can limit the support base 13 and the fixed base 14 after they are attached, reduce the slippage that occurs after the support base 13 and the fixed base 14 come into contact, and further improve the stability of the device during use.

[0038] Working Principle: During operation, the module terminal testing equipment uses RS-485 communication, acting as a RS-485 slave device. The equipment consists of two parts: a pin switching function board responsible for connecting and disconnecting 25 pins, and a module detonation detection board. Functionally, the module terminal testing equipment allows for the arbitrary connection of 25 electronic modules, enables the detonation of 25 electronic modules, collects false trigger data, and measures detonation delay. The pin switching function board and the module detonation detection board are all powered by a 24V switching power supply. The 24V is converted to an isolated 5V power supply to power their respective boards, achieving power isolation. The electronic detonator control and detection section uses optocoupler isolation to achieve electrical isolation between the electronic detonator communication bus and the detection system. The pin switching system uses relays to achieve electrical isolation between the electronic detonator bus communication and control circuits.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-type switching system for electronic detonator leads based on relay parallel connection, comprising a host computer; characterized in that: The host computer is connected to a test host device via a signal; the test host device is connected to multiple communication cable switching devices via signals; the communication cable switching devices are connected to a module terminal test device via signals. The module terminal testing equipment includes a connection harness interface input module; the connection harness interface input module is connected to an electronic module motion detection board module via a signal; the electronic module motion detection board module is connected to an electronic module pin wire switching board module via a signal; the electronic module pin wire switching board module is connected to a connection harness interface output module via a signal; the connection harness interface output module and the connection harness interface input module are connected via a signal. The electronic module motion detection board module includes a first 485 interface; the first 485 interface is connected to an MCU electronic module via a signal; the MCU electronic module is connected to an electronic module motion detection module via a signal; the electronic module motion detection module is connected to an electronic module via a signal; the electronic module lead wire switching board module includes an electronic module switching module; the electronic module switching module and the electronic module in the electronic module motion detection board module are connected via a signal; the electronic module switching module is connected to an MCU-controlled lead wire switching module via a signal; the MCU-controlled lead wire switching module is connected to a second 485 interface via a signal; the electronic module switching module is connected to a lead wire module via a signal; the lead wire module is connected to a first electronic detonator bus interface via a signal.

2. The electronic detonator lead switching system based on relay parallel connection according to claim 1, characterized in that: The connection harness interface input module includes a second electronic detonator bus interface and a third 485 interface; the connection harness interface output module includes a third electronic detonator bus interface and a fourth 485 interface; the fourth 485 interface and the third 485 interface are connected by a signal; the first electronic detonator bus interface, the second electronic detonator bus interface, and the third electronic detonator bus interface are all connected by a signal; the first 485 interface, the second 485 interface, the third 485 interface, and the fourth 485 interface are all connected by a signal.

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