A kind of on-off test system for double-pole double-throw radio frequency relay radio frequency channel

Abstract

The application relates to the technical field of radio frequency relays, and provides a system for testing the on-off state of a radio frequency channel of a double-pole double-throw radio frequency relay, which comprises a relay interface end, a relay common end and a relay control end; the relay interface end comprises a first relay interface, a second relay interface, a third relay interface and a fourth relay interface; the common end of the relay is connected with the second relay interface and the third relay interface in sequence; the second relay interface and the third relay interface after being connected are regarded as a common end; the relay control end comprises a first triode, a second triode and an MCU control chip; the input ends of the first triode and the second triode are respectively connected with the first relay interface and the fourth relay interface; the input ends are respectively connected with the MCU control chip and used for receiving control instructions about the first relay interface and the fourth relay interface sent by the MCU control chip; and the application can directly reflect the on-off state of the radio frequency channel of the double-pole double-throw radio frequency relay.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of on-off test of radio frequency channel of radio frequency relay, in particular to a kind of on-off test system of radio frequency channel of double-pole double-throw radio frequency relay. BACKGROUND

[0002] The conventional double-pole double-throw radio frequency relay adopts four-pin independent connection, and when the relay is connected, the same row or same column pin of the relay is often connected, and such double-pole double-throw radio frequency relay does not have a common terminal interface, so that when the four conduction conditions of the relay are judged, secondary testing is required, which brings inconvenience to the on-off test of the radio frequency channel of the double-pole double-throw radio frequency relay. SUMMARY

[0003] The problem solved by the present application is to judge the test system of the radio frequency channel of the double-pole double-throw radio frequency relay by one test.

[0004] To solve the above problems, the present application provides an on-off test system of radio frequency channel of double-pole double-throw radio frequency relay, which comprises a relay interface end, a relay common end and a relay control end, wherein the relay interface end comprises a first relay interface, a second relay interface, a third relay interface and a fourth relay interface, the common end of the relay is connected to the second relay interface and the third relay interface in sequence, the second relay interface and the third relay interface after connection are regarded as a common end, and the relay control end comprises a first triode, a second triode and an MCU control chip, the first triode and the second triode are connected to the first relay interface and the fourth relay interface respectively for controlling the first relay interface and the fourth relay interface.

[0005] Further, the relay interface end comprises four-way relay interfaces, the four-way relay interfaces are arranged in a 2*2 matrix, and from left to right and from top to bottom, the first relay interface, the second relay interface, the third relay interface and the fourth relay interface are arranged in sequence, and the four-way relay interface ends are all free ends.

[0006] Further, the common end of the relay splits the free ends of the originally independently connected relays, and after splitting, the common end and the relay connection interface are formed, wherein the two free ends are combined to form the common end, and the remaining two free ends form the relay connection interface.

[0007] Further, the relay control end is connected to the two relay connection interfaces, the first relay connection interface is connected to the collector of the first triode, the emitter of the first triode is grounded, and the base is connected to the MCU control chip for outputting the relay radio frequency instruction to the MCU control chip.

[0008] Further, the relay control end is connected to two relay connection interfaces, the second relay connection interface connects the collector of the second triode, the emitter of the second triode is connected to the ground, and the base is connected to the MCU control chip, and is used for outputting the relay radio frequency instruction to the MCU control chip.

[0009] Further, the two relay connection interfaces of the relay adopt one common end for testing, so that when the common end of the relay is connected to one relay connection interface, the other relay connection interface cannot be connected to the common end for testing.

[0010] Further, the common end of the relay radio frequency channel is connected to the MCU control chip, and is used for receiving the level signal sent by the MCU control chip.

[0011] Further, the common end of the relay radio frequency channel receives the level signal sent by the MCU control chip, and can be used for outputting the high level control of the conduction of the first triode or the second triode, at this time, one common end and one right end conduction of the relay radio frequency circuit form a loop, at this time, the relay channel conduction can be judged through the level signal received by the common end.

[0012] Further, when the level signal in the relay channel is conducted, the first triode and the second triode adopt the alternative working mode, and the conduction of the triode is controlled to control the input of the level signal.

[0013] Compared with the prior art, the beneficial effects of the present application are: the traditional double-pole double-throw radio frequency relay pin is adjusted, the pin is newly defined as a common end and a relay connection interface, the triode is connected through the relay connection interface, and the level signal sent by the MCU control chip is received through the common end of the relay, the on-off state of the double-pole double-throw radio frequency relay radio frequency channel is comprehensively and correctly reflected through the change of the level signal, which is very helpful for the mechanical life test of the double-pole double-throw radio frequency relay. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the principle structure of the whole structure of the present application. DETAILED DESCRIPTION

[0015] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings.

[0016] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "set", "mounted", "connected", "linked" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0017] In the description of the present application, the description of the terms "embodiment", "one embodiment" and "one implementation" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0018] As shown in Figure 1 The present application provides a kind of on-off test system of double-pole double-throw radio frequency relay radio frequency channel, comprising: relay interface end, relay public end, relay control end, the relay interface end includes: first relay interface, second relay interface, third relay interface, fourth relay interface, the public end of the relay is sequentially connected second relay interface, third relay interface, the second relay interface, third relay interface after connection is regarded as a public end, the relay control end includes first triode, second triode, MCU control chip, the first triode, second triode are connected first relay interface, fourth relay interface respectively, for controlling first relay interface, fourth relay interface.

[0019] It should be noted that in the present embodiment, the control end of the relay includes first triode, second triode, the base of first triode, second triode is connected with the two IO pins of MCU control chip respectively, and the first triode and the second triode are controlled by the IO pin of MCU control chip.

[0020] In one embodiment of the present application, the relay interface end includes four-way relay interface, the four-way relay interface is arranged according to 2*2 matrix, from left to right, from top to bottom, first relay interface, second relay interface, third relay interface, fourth relay interface, the four-way relay interface end is all free end.

[0021] It should be noted that in this embodiment, the interface numbers of the relay interface terminals are as follows: the first relay interface corresponds to interface J1, the second relay interface corresponds to interface J2, the third relay interface corresponds to interface J3, and the fourth relay interface corresponds to interface J4. The connection of the four relay interfaces is defined as being in the same row or column. For example, when the on / off state of interface J1 is the same as that of interface J2, interface J3 is the same as that of interface J4, or the on / off state of interface J1 is the same as that of interface J3.

[0022] In one embodiment of the present invention, the common terminal of the relay is split from the free terminal that was originally independently connected to the relay. The split terminal forms a common terminal and a relay connection interface, wherein two free terminals are connected together to form the common terminal, and the remaining two free terminals form the relay connection interface.

[0023] It should be noted that in this embodiment, the common terminal uses two diagonally opposite interfaces for adjustment. For example, when interfaces J2 and J3 are the common terminal, interfaces J1 and J4 are relay connection interfaces. In this case, interfaces J1-J3-J4 form a closed circuit containing a single-pole double-throw switch, and simultaneously, interfaces J1-J2-J4 form a closed circuit containing a single-pole double-throw switch.

[0024] In one embodiment of the present invention, the relay control terminal is connected to two relay connection interfaces. The first relay connection interface is connected to the collector of the first transistor. The emitter of the first transistor is grounded, and the base is connected to the MCU control chip for outputting relay radio frequency commands to the MCU control chip.

[0025] It should be noted that in this embodiment, the relay connection interface is connected to the first transistor, and the conduction status of the interface in the circuit can be transmitted to the MCU control chip through the collector of the first transistor. The base of the first transistor is connected to the IO1 pin of the MCU control chip through a fixed resistor. The conduction status of the first transistor is controlled by the output of a high level by the MCU control chip. When the MCU outputs a high level through the IO1 pin, the first transistor Q1 is turned on. Pins J1-J2-J4 form a single-pole double-throw switch. Pins J1 and J4 are used as control switches in the circuit, and pin J2 is used as an electrical appliance in the circuit. Pin J2 is connected to transistor Q1 to consume power accordingly.

[0026] In one embodiment of the present invention, the relay control terminal is connected to two relay connection interfaces. The second relay connection interface is connected to the collector of the second transistor. The emitter of the second transistor is grounded, and the base is connected to the MCU control chip for outputting relay radio frequency commands to the MCU control chip.

[0027] It should be noted that in the embodiment, the relay connection interface connects the second triode Q2, and the conduction state of the interface in the circuit is transmitted to the MCU control chip through the collector of the second triode, the base of the first triode is connected to the IO2 pin of the MCU control chip through a constant resistor, and the conduction state of the second triode Q2 is controlled by the high level output of the MCU control chip; when the MCU outputs a high level through the IO2 pin, the first triode Q2 is turned on at this time, the pins J1-J3-J4 form a single-pole double-throw switch, the pins J1 and J4 are used as control switches in the circuit, and the pin J2 is used as an electric appliance in the circuit, and the pin J2 is connected to the MCU control chip through the triode Q1 for corresponding power consumption.

[0028] In one embodiment of the application, the two relay connection interfaces of the relay adopt one common end for testing, so that when the common end of the relay is connected to one relay connection interface, the other relay connection interface cannot be connected to the common end for testing.

[0029] It should be noted that in the embodiment, the common end of the relay includes the interface J2 and the interface J3, the interface J2 and the interface J3 are connected to the triode Q1 and the triode Q2 respectively, and the triode Q1 and the triode Q2 are connected to the MCU control chip through the IO1 pin and the IO2 pin respectively; when the MCU control chip is connected to the interface J2 through the IO1 pin, the interface J3 is disconnected, and the common end J2 and the pin J1 and the pin J4 form a closed path; when the MCU control chip is connected to the interface J3 through the IO2 pin, the interface J2 is disconnected, and the common end J3 and the pin J1 and the pin J4 form a closed path.

[0030] In one embodiment of the application, the common end of the relay radio frequency channel is connected to the MCU control chip, and is used for receiving the level signal output by the MCU control chip.

[0031] It should be noted that in the embodiment, the interfaces J1 and J4 receive the level signal output by the MCU control chip through the sampling interfaces ADC1 and ADC2, the interfaces ADC1 and ADC2 sample and judge the voltage in the circuit according to the ADC function pin of the MCU control chip, and the level of the relay channel is judged according to the voltage.

[0032] In one embodiment of the application, the common end of the relay radio frequency channel receives the level signal output by the MCU control chip, which can be used for outputting a high level to control the conduction of the first triode or the second triode; at this time, one common end and one free end channel of the relay radio frequency circuit form a loop, and the conduction of the relay channel can be judged through the level signal received by the common end.

[0033] It should be noted that the IO1 pin of the triode Q1 and the IO2 pin of the triode Q2 are connected to the IO pin of the MCU control chip respectively, and the high level output by the MCU control chip can control the conduction of the triode Q1 and the triode Q2, when the triode Q1 is turned on, the pin J1-pin J3 (solid line) and the pin J2-pin J4 are connected, forming a closed loop of pin J1-(ADC1 sampling signal)-pin J3-Q2-ground and J4(ADC2)-J2-Q1-ground, at this time the sampling signal ADC1 and the sampling signal ADC2 can be judged to be connected to the channel after detecting the low level; similarly, when the pin J1-pin J2 (solid line) and the pin J3-pin J4 are connected, a closed loop of pin J1-(ADC1 sampling signal)-pin J2-Q1-ground and pin J4-(ADC2 sampling signal)-pin J2-Q1-ground is formed, at this time the sampling signal ADC1 and the sampling signal ADC2 can be judged to be connected to the channel after detecting the low level.

[0034] In an embodiment of the application, when the level signal in the relay channel is turned on, the first triode and the second triode adopt an alternative working mode, and the input of the level signal is controlled by controlling the conduction of the triode.

[0035] It should be noted that in the present embodiment, the triode Q1 or the triode Q2 is used as a switch to control that only one end of the pin J2 and the pin J3 is connected to the test circuit. When the pin J1-pin J3 (solid line) is connected, the IO1 interface outputs high level to make the triode Q1 conductive, the IO2 outputs low level to make the triode Q2 cut off, and the voltage signal of the pin J1-pin J2-pin J4 closed loop is judged. At this time, the levels of the sampling signal ADC1 and the sampling signal ADC2 are measured. If the sampling signal ADC1 is detected as low level, the pin J1-pin J2 is connected. If the sampling signal ADC1 is detected as high level, the pin J1-pin J2 is disconnected. If ADC2 detects low level, the pin J2-pin J4 is connected. If ADC2 detects high level, the pin J2-pin J4 is disconnected. Then the IO1 interface outputs low level to make the triode Q1 cut off, the IO2 interface outputs high level to make the triode Q2 conductive, and the voltage of the pin J1-pin J3-pin J4 closed loop is judged. At this time, whether the sampling signal ADC1 and the sampling signal ADC2 are low level is judged. If ADC1 detects low level, the pin J1-pin J3 is connected. If ADC1 detects high level, the pin J1-pin J3 is disconnected. If the sampling signal ADC2 detects low level, the pin J3-pin J4 is connected. If the sampling signal ADC2 detects high level, the pin J3-pin J4 is disconnected. According to the level of the sampling signal output and the on-off state of the triode, the connection state of each RF channel of the double-pole double-throw RF relay can be directly judged. When the pin J1-pin J2 (dashed line) and the pin J3-pin J4 (dashed line) are connected, the judgment method is the same as above.

[0036] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications shall fall within the protection scope of the present disclosure.

Claims

1. A continuity testing system for a double-pole double-throw radio frequency relay channel, characterized in that, include: The system comprises a relay interface terminal, a relay common terminal, and a relay control terminal. The relay interface terminal includes a first relay interface, a second relay interface, a third relay interface, and a fourth relay interface. The common terminal of the relays is sequentially connected to the second relay interface and the third relay interface, and the connected second and third relay interfaces are considered as a single common terminal. The relay control terminal includes a first transistor, a second transistor, and an MCU control chip. The input terminals of the first transistor and the second transistor are respectively connected to the first relay interface and the fourth relay interface, and are also connected to the MCU control chip to receive control commands from the MCU control chip regarding the first relay interface and the fourth relay interface.

2. The continuity testing system for a double-pole double-throw RF relay channel according to claim 1, characterized in that, The relay interface includes four relay interfaces, which are arranged in a 2*2 matrix. From left to right and from top to bottom, they are the first relay interface, the second relay interface, the third relay interface, and the fourth relay interface. All four relay interfaces are free ends.

3. The continuity testing system for a double-pole double-throw RF relay channel according to claim 1, characterized in that, The common terminal of the relay is split from the original independent free terminal, and the split forms a common terminal and a relay connection interface. Two of the free terminals are connected together to form the common terminal, and the remaining two free terminals form two separate relay connection interfaces.

4. The continuity testing system for a double-pole double-throw RF relay channel according to claim 1, characterized in that, The relay control terminal is connected to two relay connection interfaces respectively. The first relay connection interface is connected to the collector of the first transistor. The emitter of the first transistor is grounded, and the base is connected to the MCU control chip, which is used to output relay radio frequency commands to the MCU control chip.

5. The continuity testing system for a double-pole double-throw RF relay channel according to claim 4, characterized in that, The second relay connection interface is connected to the collector of the second transistor, the emitter of the second transistor is grounded, and the base is connected to the MCU control chip to receive relay radio frequency control commands issued by the MCU control chip.

6. The continuity test system for the RF channel of a double-pole double-throw RF relay according to claim 1, characterized in that, The two relay connection interfaces of the relay are tested using one of the common terminals. When the common terminal of the relay is connected to one relay connection interface for testing, the other relay connection interface cannot be connected to the common terminal for testing.

7. The continuity testing system for a double-pole double-throw radio frequency relay channel according to claim 6, characterized in that, The common terminal of the relay radio frequency channel is connected to the MCU control chip and is used to receive the level signal sent by the MCU control chip.

8. The continuity testing system for a double-pole double-throw radio frequency relay channel according to claim 7, characterized in that, The common terminal of the relay RF channel is connected to the MCU control chip and is used to receive the level signal sent by the MCU control chip. The level signal can control the conduction of the first transistor or the second transistor. At this time, a common terminal of the relay RF circuit and a relay connection interface are connected to form a closed loop. The conduction status of the relay channel can be determined based on the level signal received at the common terminal.

9. The continuity testing system for a double-pole double-throw radio frequency relay channel according to claim 8, characterized in that, When the level signal is turned on in the relay channel, the first transistor and the second transistor adopt a replacement working mode, and the level signal is input through the MCU control chip.

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