A communication terminal and a communication detection system

Abstract

The application discloses a communication terminal and a communication detection system, which comprises a radio frequency communication loop including an antenna, a switch unit, a first end of the switch unit being connected with an antenna port corresponding to the antenna, a second end of the switch unit being connected with a signal transmission test pin of a detection unit, and the signal transmission test pin being used for receiving a transmission signal transmitted by the radio frequency communication loop or a radio frequency communication loop of other to-be-detected communication terminal from the antenna port when the first end and the second end of the switch unit are conducted, and performing performance detection on the transmission signal; a third end of the switch unit being connected with a signal reception test pin of the detection unit, and the signal reception test pin being used for sending a target signal to the radio frequency communication loop when the first end and the third end of the switch unit are conducted, so that the radio frequency communication loop or the radio frequency communication loop of other to-be-detected communication terminal performs performance detection on the target signal. That is, in the application, performance detection is performed on the transmission signal or the target signal, communication terminal detection can be effectively performed, and the problem of the communication terminal can be quickly determined.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication terminal and a communication detection system. Background Technology

[0002] With the increasing maturity and popularity of network communication, the continuous progress of wireless communication technology and the increasing complexity of application scenarios, various communication terminals have entered thousands of households.

[0003] Current communication terminals, especially handheld ones such as walkie-talkies, lack radio frequency (RF) function testing. This means that when communication problems occur, there is a lack of professional testing equipment to determine whether there is a problem with the communication terminal itself. As a result, the terminal needs to be sent back to the factory for repair, and the problem cannot be quickly identified, which affects the use of the communication terminal. Utility Model Content

[0004] The technical solution to the main technical problem addressed in this application is to provide a communication terminal and a communication detection system, which can effectively detect communication terminals and quickly determine the problems of communication terminals.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: providing a communication terminal, including: a radio frequency (RF) communication circuit, the RF communication circuit including an antenna; a switching unit, the first end of the switching unit being connected to an antenna port corresponding to the antenna; a detection unit, the signal transmission test pin of the detection unit being connected to the second end of the switching unit, the detection unit being used to receive a transmission signal transmitted by the RF communication circuit or the RF communication circuit of another communication terminal under test from the antenna port when the first end and the second end of the switching unit are turned on, and to perform performance testing on the transmission signal; the signal reception test pin of the detection unit being connected to the third end of the switching unit, the detection unit being used to send a target signal to the RF communication circuit when the first end and the third end of the switching unit are turned on, so that the RF communication circuit or the RF communication circuit of the other communication terminal under test performs performance testing on the target signal.

[0006] In some embodiments of this application, the communication terminal further includes: a processing unit, a first end of which is connected to the radio frequency communication loop, for controlling the radio frequency communication loop to send the transmission signal from the antenna port when the first and second ends of the switching unit are turned on; and a second end of which is connected to the detection unit, for controlling the detection unit to send the target signal when the first and third ends of the switching unit are turned on.

[0007] In some embodiments of this application, the method further includes: a transmission detection path, the transmission detection path including: a first filter circuit, a first end of the first filter circuit being connected to a second end of the switching unit; and a first attenuation circuit, a first end of the first attenuation circuit being connected to a second end of the first filter circuit, and a second end of the first attenuation circuit being connected to a signal transmission test pin of the detection unit.

[0008] In some embodiments of this application, the first filter circuit includes: a first inductor, a first capacitor, a second capacitor, and a third capacitor; wherein, a first terminal of the first inductor is connected to a second terminal of the switching unit, and a second terminal of the first inductor is connected to a first terminal of the first attenuation circuit; a first terminal of the first capacitor is connected to a first terminal of the first inductor, and a second terminal of the first capacitor is grounded; a first terminal of the second capacitor is connected to a first terminal of the first inductor, and a second terminal of the second capacitor is connected to a second terminal of the first inductor; a first terminal of the third capacitor is connected to a second terminal of the first inductor, and a second terminal of the third capacitor is grounded; and / or, the first attenuation circuit includes: a first resistor, a second resistor, and a third resistor. The system comprises a first resistor, a fourth resistor, a fifth resistor, and a sixth resistor; wherein, the first end of the first resistor is connected to the second end of the first filter circuit, and the second end of the first resistor is grounded; the first end of the second resistor is connected to the second end of the first filter circuit, and the second end of the second resistor is connected to the first end of the fifth resistor; the first end of the third resistor is connected to the second end of the second resistor, and the second end of the third resistor is grounded; the first end of the fourth resistor is connected to the first end of the fifth resistor, and the second end of the fourth resistor is grounded; the second end of the fifth resistor is connected to the signal transmission test pin of the detection unit; and the first end of the sixth resistor is connected to the second end of the fifth resistor, and the second end of the sixth resistor is grounded.

[0009] In some embodiments of this application, the method further includes: a receiving detection path, the receiving detection path including: a second attenuation circuit, the first end of the second attenuation circuit being connected to the signal receiving test pin of the detection unit; and a second filtering circuit, the first end of the second filtering circuit being connected to the second end of the second attenuation circuit, and the second end of the second filtering circuit being connected to the third end of the switching unit.

[0010] In one embodiment of this application, the second attenuation circuit includes: a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, and a twelfth resistor; wherein, the first terminal of the seventh resistor is connected to the first terminal of the second filter circuit, and the second terminal of the seventh resistor is grounded; the second terminal of the eighth resistor is connected to the first terminal of the second filter circuit, and the first terminal of the eighth resistor is connected to the second terminal of the eleventh resistor; the first terminal of the ninth resistor is connected to the first terminal of the eighth resistor, and the second terminal of the ninth resistor is grounded; the first terminal of the tenth resistor is connected to the second terminal of the eleventh resistor, and the second terminal of the tenth resistor is grounded; the first terminal of the eleventh resistor is connected to the signal receiving test pin of the detection unit. The first terminal of the twelfth resistor is connected to the first terminal of the eleventh resistor, and the second terminal of the twelfth resistor is grounded; and / or, the second filter circuit includes: a second inductor, a fourth capacitor, a fifth capacitor, and a sixth capacitor; wherein, the first terminal of the second inductor is connected to the first terminal of the second attenuation circuit, and the second terminal of the second inductor is connected to the third terminal of the switching unit; the first terminal of the fourth capacitor is connected to the second terminal of the second inductor, and the second terminal of the fourth capacitor is grounded; the first terminal of the fifth capacitor is connected to the first terminal of the second inductor, and the second terminal of the fifth capacitor is connected to the second terminal of the second inductor; the first terminal of the sixth capacitor is connected to the first terminal of the second inductor, and the second terminal of the sixth capacitor is grounded.

[0011] In one embodiment of this application, a resistor unit is further included, which is connected to the fourth terminal of the switch unit. When the first and fourth terminals of the switch unit are turned on, the resistor unit is grounded with high resistance or left floating, so that the radio frequency communication circuit can communicate normally.

[0012] In one embodiment of this application, the resistor unit is in a high-resistance state or grounded.

[0013] In one embodiment of this application, the radio frequency communication loop includes: a radio frequency transmitting circuit and a radio frequency receiving circuit; wherein, in response to the first and second terminals of the switching unit being turned on, the radio frequency transmitting circuit is connected to the first terminal of the switching unit through the antenna port, the radio frequency transmitting circuit enters a transmitting mode, and transmits the transmitting signal; or, in response to the first and third terminals of the switching unit being turned on, the radio frequency receiving circuit is connected to the first terminal of the switching unit through the antenna port, the radio frequency receiving circuit enters a receiving mode, receives the target signal, and performs performance testing on the target signal.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a communication detection system, including: a first communication terminal and a second communication terminal, wherein the first communication terminal and the second communication terminal perform performance detection on each other through a coaxial line conduction method or a coupling method; wherein the first communication terminal and the second communication terminal are the aforementioned communication terminals.

[0015] Unlike existing technologies, the communication terminal provided in this application includes: a radio frequency (RF) communication circuit, which includes an antenna; a switching unit, the first end of which is connected to the antenna port corresponding to the antenna; and a detection unit, the signal transmission test pin of which is connected to the second end of the switching unit. The detection unit is used to receive transmission signals transmitted by the RF communication circuit or other RF communication circuits of the communication terminal under test from the antenna port when the first and second ends of the switching unit are conducting, and to perform performance testing on the transmission signals. The signal reception test pin of the detection unit is connected to the third end of the switching unit. The detection unit is used to send a target signal to the RF communication circuit when the first and third ends of the switching unit are conducting, so that the RF communication circuit or other RF communication circuits of the communication terminal under test can perform performance testing on the target signal. In other words, by setting a switching unit and a detection unit on the communication terminal, and enabling the detection unit to conduct through different ports of the switching unit to collect transmission signals from the antenna port or send target signals, and to perform performance testing on the transmission or target signals, the communication terminal can be effectively tested, and the problem of the communication terminal can be quickly identified. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the first embodiment of the communication terminal of this application; Figure 2 This is a schematic diagram of the structure of the second embodiment of the communication terminal of this application; Figure 3 This is a schematic diagram of the structure of the third embodiment of the communication terminal in this application; Figure 4 This is a schematic diagram of an embodiment of the communication detection system in this application.

[0017] In the attached diagram, the components include: communication terminal 10, RF communication loop 100, antenna 110, RF transmitting circuit 120, RF receiving circuit 130, antenna port 111, switching unit 200, detection unit 300, signal transmitting test pin 301, signal receiving test pin 302, processing unit 400, transmitting detection path 500, first filter circuit 510, first attenuation circuit 520, receiving detection path 600, second filter circuit 610, second attenuation circuit 620, and resistor unit 700. The system includes a conversion unit 800, a first inductor L1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a second inductor L2, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a first communication terminal 21, and a second communication terminal 22. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] Current communication terminals, especially handheld ones such as walkie-talkies, lack radio frequency function testing. After shipment, if communication problems occur, the lack of professional testing equipment makes it impossible to determine whether there is a problem with the communication terminal itself. Usually, measures such as returning to the factory for repair or filing a complaint are taken. In other words, the inability to quickly determine the problem with the communication terminal affects its use.

[0021] Therefore, this application proposes a communication terminal that, by setting a switching unit and a detection unit on the communication terminal, enables the detection unit to conduct through different ports of the switching unit to collect transmitted signals from the antenna port of the antenna or send target signals, and to perform performance testing on the transmitted signals or target signals. This can effectively detect the communication terminal and quickly determine the problem of the communication terminal, thereby stabilizing the use of the communication terminal.

[0022] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the first embodiment of the communication terminal of this application.

[0023] like Figure 1 As shown, the communication terminal 10 includes: a radio frequency communication circuit 100, a switching unit 200, and a detection unit 300.

[0024] The radio frequency communication circuit 100 includes an antenna 110; the first end of the switching unit 200 is connected to the antenna port 111 corresponding to the antenna 110, and is used to acquire the transmitted signal from the antenna port 111.

[0025] The signal transmission test pin 301 of the detection unit 300 is connected to the second terminal of the switch unit 200. The detection unit 300 is used to receive the transmission signal transmitted by the RF communication circuit or the RF communication circuit of the other communication terminal under test from the antenna port 111 when the first and second terminals of the switch unit 200 are turned on, and to perform performance testing on the transmission signal. The signal reception test pin 302 of the detection unit 300 is connected to the third terminal of the switch unit 200. The detection unit 300 is used to send the target signal to the RF communication circuit 100 when the first and third terminals of the switch unit 200 are turned on, so that the RF communication circuit or the RF communication circuit of the other communication terminal under test can perform performance testing on the target signal.

[0026] In this context, communication terminal 10 refers to a module capable of communication; radio frequency communication circuit 100 refers to a module capable of transmitting, processing, and receiving radio frequency signals; antenna 110 refers to a component used for transmitting and receiving signals; antenna port 111 refers to the input or output interface of antenna 110; switching unit 200 refers to a switching module used for switching multiple paths, such as a switching unit with one common input and multiple outputs, which corresponds to switching paths for multiple outputs; detection unit 300 refers to a module capable of detecting the performance of the communication terminal by transmitting signals; signal transmission test pin 301 refers to the pin of detection unit 300 used for transmitting signals; and signal reception test pin 302 refers to the pin of detection unit 300 used for receiving signals.

[0027] Specifically, the antenna port 111 of the antenna 110 of the radio frequency communication loop 100 of the communication terminal 10 is connected to the first end of the switching unit 200, the signal transmission test pin 301 of the detection unit 300 is connected to the second end of the switching unit 200, and the signal reception test pin 302 of the detection unit 300 is connected to the third end of the switching unit. Then, when the first and second ends of the switching unit 200 are turned on, the detection unit 300 receives the transmission signal transmitted by the radio frequency communication loop or the radio frequency communication loop of the other communication terminal under test through the signal transmission test pin, and performs performance testing on the transmission signal; or when the first and third ends of the switching unit 200 are turned on, the detection unit 300 sends the target signal to the radio frequency communication loop 100 through the signal reception test pin 302, so that the radio frequency communication loop or the radio frequency communication loop of the other communication terminal under test performs performance testing on the target signal.

[0028] It is understandable that performing performance testing on the transmitted signal refers to testing the transmission performance of the device sending the transmitted signal to determine the corresponding transmission performance; and the transmitted signal can be sent by the radio frequency communication loop of the current communication terminal or by the radio frequency communication loop under test of another communication terminal. Performing performance testing on the target signal refers to, after the detection unit 300 sends the target signal, the radio frequency communication loop of the current communication terminal or the radio frequency communication loop of the other communication terminal under test performs performance testing on the communication terminal sending the target signal to determine the corresponding reception performance.

[0029] In this embodiment, by setting a switching unit and a detection unit on the communication terminal, the detection unit can be turned on through different ports of the switching unit to collect the transmitted signal from the antenna port of the antenna or send the target signal, and perform performance detection on the transmitted signal or the target signal. This can effectively detect the communication terminal and quickly determine the problem of the communication terminal, thereby enabling rapid repair of the communication terminal with problems.

[0030] In some embodiments, the communication terminal 10 further includes a processing unit 400.

[0031] Please see Figure 2 , Figure 2 This is a schematic diagram of the structure of the second embodiment of the communication terminal in this application.

[0032] like Figure 2 As shown, the communication terminal 10 includes: a radio frequency communication circuit 100, a switching unit 200, a detection unit 300, and a processing unit 400.

[0033] The radio frequency communication circuit 100 includes an antenna 110; the first end of the switching unit 200 is connected to the antenna port 111 corresponding to the antenna 110. The signal transmission test pin 301 of the detection unit 300 is connected to the second end of the switching unit 200; the signal reception test pin 302 of the detection unit 300 is connected to the third end of the switching unit 200.

[0034] It can be understood that the transmitted signal refers to the transmitted signal sent by the radio frequency communication circuit of the current communication terminal, or the transmitted signal sent by the radio frequency communication circuit of other communication terminals under test.

[0035] In some embodiments, the radio frequency (RF) communication loop may further include an RF transmitting circuit 120 and an RF receiving circuit 130; wherein the RF transmitting circuit 120 is used to transmit a signal, and the RF receiving circuit 130 is used to receive a target signal. For example, the RF transmitting circuit 120 and the RF receiving circuit 130 can be an RF testing module, a walkie-talkie, a narrowband device, etc. That is, the communication module of the RF communication loop can transmit a signal and receive a target signal.

[0036] The first terminal of the processing unit 400 is connected to the radio frequency communication loop 100, and is used to control the radio frequency communication loop 100 to send a transmission signal from the antenna port when the first and second terminals of the switching unit 200 are turned on, thereby enabling the detection unit 300 to receive the transmission signal through the signal transmission test pin 301 and perform performance testing on the transmission signal. The second terminal of the processing unit 400 is connected to the detection unit 300, and is used to control the detection unit 300 to send a target signal when the first and third terminals of the switching unit 200 are turned on.

[0037] The processing unit 400 refers to the module that can control the radio frequency communication circuit 100 to send transmission signals and control the detection unit 300 to send target signals.

[0038] Specifically, when the first and second terminals of the switching unit 200 are turned on, the processing unit 400 controls the RF communication circuit 100 to enter the transmit mode and causes the RF communication circuit 100 to send a transmit signal. Simultaneously, the processing unit 400 controls the detection unit 300 to enter the receive mode, so that the detection unit 300 receives the transmit signal through the signal transmission test pin 301, thereby enabling the detection unit 300 to perform performance testing on the transmit signal and determine the transmit performance of the RF communication circuit 100 based on the test results. When the first and third terminals of the switching unit 200 are turned on, the processing unit 400 controls the detection unit 300 to enter the transmit mode and causes the detection unit 300 to send a target signal. Simultaneously, the processing unit 400 controls the RF communication circuit 100 to enter the receive mode, i.e., to receive signals normally, so that the RF communication circuit 100 receives the target signal and thereby enables the RF communication circuit 100 to perform performance testing on the received target signal.

[0039] In some embodiments, before the processing unit 400 controls the radio frequency communication loop 100 to receive the transmitted signal from the antenna port 111, the following operations may also be included.

[0040] The processing unit 400 controls the detection unit 300 and the antenna port 111 to perform frequency point matching and obtain the frequency point matching result.

[0041] Here, frequency point refers to the specific frequency value occupied by the radio signal. Frequency point matching is to match the frequency value of the transmitted signal corresponding to the antenna port 111 of the detection unit 300. Since the transmitted signal is sent by the radio frequency communication circuit 100, frequency point matching is to match the frequency value between the detection unit 300 and the radio frequency communication circuit 100.

[0042] Specifically, when the processing unit 400 controls the radio frequency communication circuit 100 to enter the transmit mode and controls the detection unit 300 to enter the receive mode, frequency matching is performed so that the radio frequency communication circuit 100 and the detection unit 300 are matched in frequency, that is, they are in the same frequency range and can communicate with each other.

[0043] Next, in response to a successful frequency matching result, the processing unit 400 controls the detection unit 300 to enable the receiving mode, so that the detection unit 300 receives the transmitted signal when the first terminal 201 and the second terminal 202 of the switching unit 200 are turned on.

[0044] When the frequency points of the radio frequency communication loop 100 corresponding to the transmitted signal received by the detection unit 300 and the antenna port 111 are successfully matched, the processing unit 400 controls the detection unit 300 to successfully start the receiving mode.

[0045] Specifically, in response to successful frequency matching, the processing unit 400 controls the detection unit 300 to turn on the receiving mode. That is, when the first and second terminals of the switching unit 200 are turned on, the detection unit 300 can collect the transmission signal sent by the radio frequency communication circuit of the current communication terminal from the antenna port 111.

[0046] Understandably, if frequency matching fails, frequency matching will be performed again until it succeeds.

[0047] In this embodiment, frequency matching is performed before detection begins, so that the detection unit and the radio frequency communication return can be connected, and the corresponding signals can be accurately sent and received according to the matched frequency.

[0048] In some embodiments, the communication terminal 10 further includes a transmission detection path.

[0049] Continue reading Figure 2The emission detection path 500 includes a first filter circuit 510 and a first attenuation circuit 520.

[0050] The first end of the first filter circuit 510 is connected to the second end of the switch unit 200; the first end of the first attenuation circuit 520 is connected to the second end of the first filter circuit 510, and the second end of the first attenuation circuit 520 is connected to the signal transmission test pin of the detection unit 300.

[0051] Specifically, the transmitted signal from the current communication terminal's RF communication loop or the RF communication loop of another communication terminal under test, collected from the antenna port 111 of the antenna 110, passes through the first filter circuit 510 and the first attenuation circuit 520, and reaches the detection unit 300, thereby enabling the detection unit 300 to perform performance testing on the RF communication loop 100 corresponding to the transmitted signal.

[0052] Furthermore, the communication terminal 10 also includes a receiving detection path 600.

[0053] Continue reading Figure 2 The receiving and detection path 600 includes a second filter circuit 610 and a second attenuation circuit 620.

[0054] The first end of the second attenuation circuit 620 is connected to the signal receiving test pin 302 of the detection unit 300, the first end of the second filter circuit 610 is connected to the second end of the second attenuation circuit 620, and the second end of the second filter circuit 610 is connected to the third end of the switching unit 200.

[0055] Specifically, the target signal sent by the detection unit 300 is transmitted through the signal receiving test pin 302 of the detection unit 300, the second attenuation circuit 620, the second filtering circuit 610, the switching unit 200, and the antenna port 111 of the antenna 110, and then reaches the radio frequency communication circuit 100 of the current communication terminal or the radio frequency communication circuit of other communication terminals under test. In response to the radio frequency communication circuit 100 receiving the target signal and having a corresponding sound, the detection unit 300 obtains the feedback information of the radio frequency communication circuit 100 receiving the target signal, and then determines the performance test of the radio frequency communication circuit of the current communication terminal or the radio frequency communication circuit of other communication terminals under test corresponding to the target signal.

[0056] In some embodiments, the first filter circuit 510 and the second filter circuit 610 have the same structure, and the first attenuation circuit 520 and the second attenuation circuit 620 have the same structure. The filter circuits function to filter out harmonics and spurious interference in the radio frequency signal and selectively extract the fundamental signal to optimize the spectral quality.

[0057] For example, the first filter circuit 510 and the second filter circuit 610 can be active or passive filter circuits. A filter circuit composed only of passive components (resistors, capacitors, inductors) is called a passive filter circuit. The main forms of passive filtering include capacitor filtering, inductor filtering, and complex filtering (including inverted L-type, LC filtering, LCπ-type filtering, and RCπ-type filtering). If the filter circuit is composed not only of passive components but also of active components (bipolar transistors, unipolar transistors, operational amplifiers), it is called an active filter circuit. The main form of active filtering is active RC filtering, also known as an electronic filter.

[0058] For example, the first attenuation circuit 520 and the second attenuation circuit 620 can be symmetrical attenuation circuits, bridged T-type attenuation circuits, asymmetrical T-type attenuation circuits, asymmetrical TT-type attenuation circuits, etc.

[0059] In some embodiments, the communication terminal further includes a resistor unit 700.

[0060] Continue reading Figure 2 The resistor unit 700 is connected to the fourth terminal of the switch unit 200. When the first and fourth terminals of the switch unit 200 are turned on, the resistor unit 700 is grounded with high resistance or left floating, so that the radio frequency communication circuit 100 can communicate normally.

[0061] The resistor unit 700 is used to switch to high-impedance ground or floating, so that the detection mode switches to normal mode. The detection modes include self-test mode and external test mode. In self-test mode, the current communication terminal's RF communication circuit sends a transmission signal to the detection unit to perform performance testing on the transmission status, and receives the target signal sent by the detection unit to perform performance testing on the reception status. In external test mode, the RF communication circuit under test of another communication terminal sends a transmission signal to the detection unit to perform performance testing on the transmission status, and receives the target signal sent by the detection unit to perform performance testing on the reception status of the other communication terminal.

[0062] In some embodiments, the communication terminal may further include a conversion unit 800.

[0063] Continue reading Figure 2 The first terminal of the conversion unit 800 is connected to the second terminal of the processing unit 400, and is used to load a preset signal into the processing unit 400 when the first and third terminals of the switching unit 200 are turned on, so that the processing unit 400 sends the target signal according to the preset signal. The second terminal of the conversion unit 800 is connected to the detection unit 300, and is used to send the preset signal to the detection unit 300 so that the detection unit 300 sends the target signal.

[0064] Among them, the conversion unit 800 is a module that can convert one type of data into another type of data, such as a DAC module (Digital-to-Analog Converter) that converts data volume into analog volume.

[0065] Specifically, the processing unit 400 outputs a preset signal through the conversion unit 800 and loads it into the detection unit 300, thereby causing the detection unit 300 to enter the transmission mode and send the target signal. The target signal passes through the signal receiving test pin of the detection unit 300, the third terminal and the first terminal of the switching unit 200, and is then received by the radio frequency communication circuit 100.

[0066] It is understandable that the radio frequency communication circuit 100 here can be the radio frequency communication circuit of the current communication terminal, or it can be the radio frequency communication circuit under test of another communication terminal.

[0067] In some embodiments, performance testing can be performed based on the signal strength. For example, a signal strength within a preset threshold range is considered normal, while a signal strength outside the preset threshold range is considered abnormal.

[0068] In this embodiment, by setting a switching unit and a detection unit on the communication terminal, the detection unit can be turned on through different ports of the switching unit to collect the transmitted signal from the antenna port of the antenna or send the target signal, and perform performance detection on the transmitted signal or the target signal. This can effectively detect the communication terminal and quickly determine the problem of the communication terminal.

[0069] In some embodiments, the transmit detection path 500 includes a first filter circuit 510 and a first attenuation circuit 520, and the receive detection path 600 includes a second filter circuit 610 and a second attenuation circuit 620.

[0070] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of the third embodiment of the communication terminal in this application.

[0071] like Figure 3 As shown, with Figure 2 The identical parts will not be described again; the differences are described below: The emission detection path 500 includes a first filter circuit 510 and a first attenuation circuit 520.

[0072] The first filter circuit 510 includes a first inductor L1, a first capacitor C1, a second capacitor C2, and a third capacitor C3. The first terminal of the first inductor L1 is connected to the second terminal of the switching unit 200, and the second terminal of the first inductor L1 is connected to the first terminal of the first attenuation circuit 520. The first terminal of the first capacitor C1 is connected to the first terminal of the first inductor L1, and the second terminal of the first capacitor C1 is grounded. The first terminal of the second capacitor C2 is connected to the first terminal of the first inductor L1, and the second terminal of the second capacitor C2 is connected to the second terminal of the first inductor L1. The first terminal of the third capacitor C3 is connected to the second terminal of the first inductor L1, and the second terminal of the third capacitor C3 is grounded.

[0073] The first attenuation circuit 520 includes: a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, and a sixth resistor R6. Specifically, the first terminal of the first resistor R1 is connected to the second terminal of the first filter circuit 510, and the second terminal of the first resistor R1 is grounded; the first terminal of the second resistor R2 is connected to the second terminal of the first filter circuit 510, and the second terminal of the second resistor R2 is connected to the first terminal of the fifth resistor R5; the first terminal of the third resistor R3 is connected to the second terminal of the second resistor R2, and the second terminal of the third resistor R3 is grounded; the first terminal of the fourth resistor R4 is connected to the first terminal of the fifth resistor R5, and the second terminal of the fourth resistor R4 is grounded; the second terminal of the fifth resistor R5 is connected to the signal transmission test pin 301 of the detection unit 300; and the first terminal of the sixth resistor R6 is connected to the second terminal of the fifth resistor R5, and the second terminal of the sixth resistor R6 is grounded.

[0074] The receiving detection path 600 includes a second filter circuit 610 and a second attenuation circuit 620.

[0075] The second attenuation circuit 620 includes: a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, and a twelfth resistor R12. The first terminal of the seventh resistor R7 is connected to the first terminal of the second filter circuit 610, and the second terminal of the seventh resistor R7 is grounded. The second terminal of the eighth resistor R8 is connected to the first terminal of the second filter circuit 610, and the first terminal of the eighth resistor R8 is connected to the second terminal of the eleventh resistor R11. The first terminal of the ninth resistor R9 is connected to the first terminal of the eighth resistor R8, and the second terminal of the ninth resistor R9 is grounded. The first terminal of the tenth resistor R10 is connected to the second terminal of the eleventh resistor R11, and the second terminal of the tenth resistor R10 is grounded. The first terminal of the eleventh resistor R11 is connected to the signal receiving test pin 302 of the detection unit 300. The first terminal of the twelfth resistor R12 is connected to the first terminal of the eleventh resistor R11, and the second terminal of the twelfth resistor R12 is grounded.

[0076] The second filter circuit 610 includes a second inductor L2, a fourth capacitor C4, a fifth capacitor C5, and a sixth capacitor C6. The first terminal of the second inductor L2 is connected to the first terminal of the second attenuation circuit 620, and the second terminal of the second inductor L2 is connected to the third terminal of the switching unit 200. The first terminal of the fourth capacitor C4 is connected to the second terminal of the second inductor L2, and the second terminal of the fourth capacitor C4 is grounded. The first terminal of the fifth capacitor C5 is connected to the first terminal of the second inductor L2, and the second terminal of the fifth capacitor C5 is connected to the second terminal of the second inductor L2. The first terminal of the sixth capacitor C6 is connected to the first terminal of the second inductor L2, and the second terminal of the sixth capacitor C6 is grounded.

[0077] It is understood that the filter circuit used in this embodiment is illustrative, and it can also be an active filter circuit or a passive filter circuit. A filter circuit composed only of passive components (resistors, capacitors, inductors) is called a passive filter circuit. The main forms of passive filtering include capacitor filtering, inductor filtering, and complex filtering (including inverted L-type, LC filtering, LCπ-type filtering, and RCπ-type filtering, etc.). If the filter circuit is composed not only of passive components but also of active components (bipolar transistors, unipolar transistors, integrated operational amplifiers), it is called an active filter circuit. The attenuation circuit used in this embodiment is also illustrative, and it can also be a symmetrical attenuation circuit, a bridged T-type attenuation circuit, an asymmetrical T-type attenuation circuit, an asymmetrical TT-type attenuation circuit, etc.

[0078] In some embodiments, the detection method for the communication terminal is as follows.

[0079] In response to the first and second terminals of the switching unit being turned on, the detection unit receives the transmission signal transmitted by the radio frequency communication circuit of the current communication terminal or the radio frequency communication circuit of the other communication terminal under test, collected from the antenna port corresponding to the antenna, and performs performance testing on the transmission signal. The signal transmission test pin of the detection unit is connected to the second terminal of the switching unit, and the first terminal of the switching unit is connected to the antenna port corresponding to the antenna.

[0080] When the first and second terminals of the switching unit are turned on, it indicates that the current communication terminal has started the detection mode for transmitting.

[0081] Specifically, in response to the first and second terminals of the switching unit 200 being turned on, the detection unit 300 acquires the transmission signals transmitted by the current communication terminal's RF communication circuit or the RF communication circuit of another communication terminal under test from the antenna port 111 of the antenna 110 via the signal transmission test pin 301, the transmission detection path 500, and the switching unit 200.

[0082] If the detection mode is self-test mode, the transmission signal sent by the current communication terminal's radio frequency transmission circuit is collected. The detection unit 300 then performs performance testing on the transmission signal, such as testing the signal strength, to determine whether the current communication terminal's radio frequency transmission circuit is functioning normally. For example, if the signal strength is within a first preset threshold range, the transmission status is normal; if it is outside the first preset threshold range, the transmission status is abnormal. The first preset threshold range can be set according to actual conditions.

[0083] If the detection mode is a separate detection mode, the system collects the transmission signal sent by the radio frequency communication circuit under test of another communication terminal. The detection unit 300 then performs performance testing on the transmission signal, such as testing the signal strength, to determine whether the transmission status of the radio frequency transmission circuit under test of the other communication terminal is normal. For example, if the signal strength is within a first preset threshold range, the transmission status is normal; if it is outside the first preset threshold range, the transmission status is abnormal.

[0084] Alternatively, the following steps may be taken.

[0085] In response to the first and third terminals of the switching unit being turned on, the detection unit sends a target signal to the radio frequency communication loop and performs performance testing on the target signal. The signal receiving test pin of the detection unit is connected to the third terminal of the switching unit.

[0086] When the first and third terminals of the switching unit are turned on, the communication terminal is in the detection mode of receiving.

[0087] If the detection mode is self-test mode, the detection unit 300 sends a target signal to the RF communication loop of the current communication terminal through the signal receiving test pin. After the RF communication loop receives the target signal, it uses the signal strength of the feedback target signal to perform performance testing on the reception status of the current communication terminal's RF communication loop. For example, if the signal strength of the target signal is within a second preset threshold range, the reception status is normal; if it is outside the second preset threshold range, the reception status is abnormal. The second preset threshold range can be set according to actual conditions.

[0088] If the detection mode is the external detection mode, the detection unit 300 sends a target signal to the radio frequency communication circuit under test of another communication terminal through the signal receiving test pin. After the radio frequency communication circuit under test receives the target signal, it uses the signal strength of the feedback target signal to perform performance testing on the reception status of the radio frequency communication circuit of the other communication terminal. For example, if the signal strength of the target signal is within the second preset threshold range, the reception status is normal; if it is outside the second preset threshold range, the reception status is abnormal. The second preset threshold range can be set according to the actual situation.

[0089] In this embodiment, by setting a switching unit and a detection unit on the communication terminal, the detection unit can be turned on through different ports of the switching unit to collect the transmitted signal from the antenna port of the antenna or send the target signal, and perform performance detection on the transmitted signal or the target signal. This can effectively perform self-testing and external testing on the communication terminal and quickly determine the problem of the communication terminal.

[0090] In some embodiments, in response to the first and fourth terminals of the switching unit 200 being turned on, the radio frequency communication loop enters a normal communication state.

[0091] Specifically, resistor unit 700 is used to switch to high-resistance ground or floating, so that the detection mode switches to normal mode; that is, the current communication terminal exits the detection mode.

[0092] In some embodiments, the detection modes include a self-test mode and a third-party test mode. In the third-party test mode, the current communication terminal and another communication terminal can be connected by coaxial cable conduction or by coupling.

[0093] In some embodiments, the transmitted signal is a transmitted signal sent by the radio frequency communication circuit of the current communication terminal, or a transmitted signal sent by the radio frequency communication circuit of another communication terminal under test.

[0094] In some embodiments, the communication terminal 10 may be a handheld communication device, such as a walkie-talkie.

[0095] This application also provides a communication detection system.

[0096] Please see Figure 4 , Figure 4 This is a schematic diagram of an embodiment of the communication detection system in this application.

[0097] like Figure 4 As shown, the communication testing system 20 includes a first communication terminal 21 and a second communication terminal 22. The first communication terminal and the second communication terminal perform performance testing on each other via coaxial cable conduction or coupling, and the performance testing principle is as described above. The first communication terminal 21 and the second communication terminal 22 are the aforementioned communication terminals.

[0098] Unlike current technologies, the communication terminal provided in this embodiment includes: a radio frequency (RF) communication circuit, which includes an antenna; a switching unit, the first end of which is connected to the antenna port corresponding to the antenna; and a detection unit, the signal transmission test pin of which is connected to the second end of the switching unit. The detection unit is used to receive transmission signals transmitted by the RF communication circuit or other communication terminals under test from the antenna port when the first and second ends of the switching unit are conducting, and to perform performance testing on the transmission signals. The signal reception test pin of the detection unit is connected to the third end of the switching unit. The detection unit is used to send a target signal to the RF communication circuit when the first and third ends of the switching unit are conducting, so that the RF communication circuit or other communication terminals under test can perform performance testing on the target signal. In other words, by setting a switching unit and a detection unit on the communication terminal, and enabling the detection unit to conduct through different ports of the switching unit to collect transmission signals from the antenna port or send target signals, and to perform performance testing on the transmission signals or target signals, the current communication terminal or other communication terminals under test can be effectively tested, and the problems of the communication terminal can be quickly identified.

[0099] The above solution, by adding a switching unit and a detection unit outside the RF communication loop, allows the detection unit to receive and perform performance testing on the transmitted signal when the first and second terminals of the switching unit are conducting; and when the first and third terminals of the switching unit are conducting, the detection unit sends the target signal to the RF communication loop through the switching unit and performs performance testing on the target signal. This achieves both RF self-testing and serves as an RF testing device for other communication terminals, facilitating rapid identification of intercom terminal problems. Furthermore, as an independent detection unit, its detection function is not damaged by failures in other modules of the communication terminal, does not affect normal circuitry, and does not incur additional losses. The solution is simple in design, low in cost, and has no special platform limitations, allowing it to be installed on all DMR / PDT (Digital Mobile Radio / Professional Digital Trunking) or analog terminals.

[0100] The communication terminal of this application, by setting up a switching unit and a detection unit on the basis of the radio frequency communication circuit, allows the signal transmission test pin of the detection unit to be connected to the second terminal of the switching unit. This pin receives the transmitted signal and performs performance testing on the transmitted signal when the first and second terminals of the switching unit are conducting. The signal reception test pin of the detection unit is connected to the third terminal of the switching unit. This pin sends the target signal to the radio frequency communication circuit through the switching unit when the first and third terminals of the switching unit are conducting, and performs performance testing on the target signal. This effectively detects the communication terminal and quickly identifies problems. Furthermore, the design of the communication terminal in this application allows for both self-testing and external testing, facilitating rapid identification of problems with the intercom terminal.

[0101] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0102] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0103] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0104] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A communication terminal, characterized in that, include: A radio frequency communication loop, wherein the radio frequency communication loop includes an antenna; A switching unit, wherein the first end of the switching unit is connected to the antenna port corresponding to the antenna; The detection unit has a signal transmission test pin connected to the second terminal of the switch unit. When the first and second terminals of the switch unit are turned on, the detection unit receives a transmission signal transmitted by the RF communication circuit or the RF communication circuit of another communication terminal under test from the antenna port, and performs performance testing on the transmission signal. The detection unit also has a signal reception test pin connected to the third terminal of the switch unit. When the first and third terminals of the switch unit are turned on, the detection unit sends a target signal to the RF communication circuit, so that the RF communication circuit or the RF communication circuit of another communication terminal under test performs performance testing on the target signal.

2. The communication terminal according to claim 1, characterized in that, The communication terminal further includes: a processing unit, the first end of which is connected to the radio frequency communication loop, for controlling the radio frequency communication loop to send the transmission signal from the antenna port when the first and second ends of the switching unit are turned on; the second end of the processing unit is connected to the detection unit, for controlling the detection unit to send the target signal when the first and third ends of the switching unit are turned on.

3. The communication terminal according to claim 1, characterized in that, Also includes: The emission detection path includes: A first filter circuit, wherein a first terminal of the first filter circuit is connected to a second terminal of the switching unit; A first attenuation circuit, wherein a first end of the first attenuation circuit is connected to a second end of the first filter circuit, and the second end of the first attenuation circuit is connected to a signal transmission test pin of the detection unit.

4. The communication terminal according to claim 3, characterized in that, The first filter circuit includes: a first inductor, a first capacitor, a second capacitor, and a third capacitor; Wherein, the first end of the first inductor is connected to the second end of the switching unit, and the second end of the first inductor is connected to the first end of the first attenuation circuit; the first end of the first capacitor is connected to the first end of the first inductor, and the second end of the first capacitor is grounded; the first end of the second capacitor is connected to the first end of the first inductor, and the second end of the second capacitor is connected to the second end of the first inductor; the first end of the third capacitor is connected to the second end of the first inductor, and the second end of the third capacitor is grounded. And / or, the first attenuation circuit includes: First resistor, second resistor, third resistor, fourth resistor, fifth resistor, and sixth resistor; Wherein, the first end of the first resistor is connected to the second end of the first filter circuit, and the second end of the first resistor is grounded; the first end of the second resistor is connected to the second end of the first filter circuit, and the second end of the second resistor is connected to the first end of the fifth resistor; the first end of the third resistor is connected to the second end of the second resistor, and the second end of the third resistor is grounded; the first end of the fourth resistor is connected to the first end of the fifth resistor, and the second end of the fourth resistor is grounded; the second end of the fifth resistor is connected to the signal transmission test pin of the detection unit; the first end of the sixth resistor is connected to the second end of the fifth resistor, and the second end of the sixth resistor is grounded.

5. The communication terminal according to claim 1, characterized in that, Also includes: The receiving detection path includes: The second attenuation circuit, the first end of which is connected to the signal receiving test pin of the detection unit; The second filter circuit has a first terminal connected to the second terminal of the second attenuation circuit, and the second terminal of the second filter circuit is connected to the third terminal of the switching unit.

6. The communication terminal according to claim 5, characterized in that, The second attenuation circuit includes: a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, and a twelfth resistor; Wherein, the first end of the seventh resistor is connected to the first end of the second filter circuit, and the second end of the seventh resistor is grounded; the second end of the eighth resistor is connected to the first end of the second filter circuit, and the first end of the eighth resistor is connected to the second end of the eleventh resistor; the first end of the ninth resistor is connected to the first end of the eighth resistor, and the second end of the ninth resistor is grounded; the first end of the tenth resistor is connected to the second end of the eleventh resistor, and the second end of the tenth resistor is grounded; the first end of the eleventh resistor is connected to the signal receiving test pin of the detection unit; the first end of the twelfth resistor is connected to the first end of the eleventh resistor, and the second end of the twelfth resistor is grounded; And / or, the second filter circuit includes: a second inductor, a fourth capacitor, a fifth capacitor, and a sixth capacitor; Wherein, the first end of the second inductor is connected to the first end of the second attenuation circuit, and the second end of the second inductor is connected to the third end of the switching unit; the first end of the fourth capacitor is connected to the second end of the second inductor, and the second end of the fourth capacitor is grounded; the first end of the fifth capacitor is connected to the first end of the second inductor, and the second end of the fifth capacitor is connected to the second end of the second inductor; the first end of the sixth capacitor is connected to the first end of the second inductor, and the second end of the sixth capacitor is grounded.

7. The communication terminal according to claim 1, characterized in that, Also includes: A resistor unit is connected to the fourth terminal of the switch unit. When the first and fourth terminals of the switch unit are turned on, the resistor unit is grounded with high resistance or left floating, so that the radio frequency communication circuit can communicate normally.

8. The communication terminal according to claim 7, characterized in that, The resistor unit is either in a high-resistance state or grounded.

9. The communication terminal according to claim 1, characterized in that, The radio frequency communication loop includes: a radio frequency transmitting circuit and a radio frequency receiving circuit; In response to the first and second terminals of the switching unit being turned on, the radio frequency transmitting circuit is connected to the first terminal of the switching unit through the antenna port, the radio frequency transmitting circuit enters the transmitting mode, and transmits the transmitting signal; or, in response to the first and third terminals of the switching unit being turned on, the radio frequency receiving circuit is connected to the first terminal of the switching unit through the antenna port, the radio frequency receiving circuit enters the receiving mode, receives the target signal, and performs performance testing on the target signal.

10. A communication detection system, characterized in that, include: A first communication terminal and a second communication terminal, wherein the first communication terminal and the second communication terminal perform performance testing on each other via coaxial cable conduction or coupling. Wherein, the first communication terminal and the second communication terminal are the communication terminals described in any one of claims 1-9.

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