Voice talkback recording and playing system for radiology department

Abstract

A radiology department voice talkback recording and playing system belongs to the technical field of medical instruments. Which comprises a shell, a sound pickup and a plurality of keys are arranged on the surface of the shell, a control circuit is arranged in the shell, and the sound pickup and the keys are connected into the control circuit, and is characterized in that the control circuit comprises a main control module and an enabling control module, and the main control module is connected with the enabling control module and controls on-off of the enabling control module according to the states of the keys; two voice transmission paths with opposite transmission directions are further arranged, in the first voice transmission path, the pickup arranged on the shell is connected with the first signal processing unit through the enabling control module, and the first signal processing unit is connected with the sound equipment; and in the second voice transmission path, the sound pickup is connected with a loudspeaker arranged on the shell through a second signal processing unit. In the voice talkback recording and playing system for the radiology department, two voice transmission paths with opposite transmission directions are arranged, so that bidirectional real-time talkback of an equipment room and an operation room in the radiology department is realized.

Description

Technical Field

[0001] The invention discloses a radiology department voice intercom recording and playback system, belonging to the technical field of medical equipment. Background Art

[0002] The radiology department is an important auxiliary examination department in the hospital. Since most of the examination equipment in the radiology department has strong radiation, it is generally separated into an operation room and an equipment room. The examination equipment is located in the equipment room. After the doctor settles the patient in the equipment room, he enters the operation room to perform the corresponding operation. Since some examinations need to be divided into multiple stages during the entire examination process, in order to improve efficiency and avoid excessive radiation exposure to doctors, a voice system is generally set up between the operation room and the equipment room. At different stages of the examination, different voice messages are played to the equipment room to serve as a reminder. At the same time, in some special cases, the doctor needs to actively speak to the patient to ensure the smooth progress of the examination.

[0003] The traditional voice system set up in the radiology department is generally a one-way transmission mode, that is, the pre-recorded audio is played to the equipment room alone, or the doctor speaks to the patient alone. In this way, during the examination, the patient cannot provide feedback to the doctor, which poses certain risks. With the continuous development of technology, some voice systems that can achieve two-way dialogue have also appeared on the market, such as: the technical solution disclosed by the Chinese utility model patent with application number: 97241132.1, application date: August 5, 1997, and patent name: "Voice Prompt Wired Intercom".

[0004] The application number is: 201821237020.0, the application date is August 1, 2018, and the patent name is the technical solution disclosed in the Chinese utility model patent "A hospital video intercom system".

[0005] The application number is: 202310174156.0, the application date is February 28, 2023, and the patent name is "A visual intercom system in an operating room" The technical solution disclosed in the Chinese invention patent.

[0006] Although the existing technologies including the above technical solutions have achieved two-way communication, they are not suitable for hospital radiology departments. The reason is that the traditional two-way communication technical solutions have not achieved two-way real-time dialogue. When a dialogue is needed, the requesting party needs to make a request (such as by pressing a button), and even the requested party needs to confirm before the dialogue can be completed. In the radiology department, the patient's movements on the detection equipment are restricted, making it inconvenient to initiate a dialogue. In addition, due to the particularity of the radiology equipment itself, it is not convenient to add an intercom system to the radiology equipment. Therefore, designing a technical solution that can achieve two-way real-time dialogue suitable for hospital radiology departments has become a problem that needs to be urgently solved in this field. Utility Model Content

[0007] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a radiology department voice intercom recording and playback system which is provided with two voice transmission routes with opposite transmission directions and realizes two-way real-time intercom between the equipment room and the operation room in the radiology department.

[0008] The technical solution adopted by the utility model to solve the technical problem is: the radiology department voice intercom recording and playback system comprises a shell, a microphone and a plurality of buttons are arranged on the surface of the shell, a main control board is arranged inside the shell, a control circuit is arranged on the main control board, the microphone and the plurality of buttons are connected to the control circuit, and the characteristics are: the control circuit comprises a main control module and an enabling control module, the main control module is connected to the enabling control module, and the enabling control module is controlled to be turned on and off according to the button status;

[0009] Two voice propagation routes with opposite propagation directions are also provided. In the first voice propagation route, the microphone arranged on the shell is connected to the first signal processing unit through the enabling control module, and the first signal processing unit is connected to the audio; in the second voice propagation route, the microphone is connected to the speaker arranged on the shell through the second signal processing unit.

[0010] Preferably, the enabling control module includes an intercom enabling control module and a recording and playback enabling control module, the microphone in the first voice transmission path is connected to the signal input end of the intercom enabling control module, and the signal output end of the intercom enabling control module is connected to the audio through the first signal processing unit.

[0011] Preferably, the first signal processing unit and the second signal processing unit include a preamplifier module, a sidetone elimination module and a power amplifier module connected in sequence; in the first voice propagation path, the signal output end of the intercom enable control module is connected to the input end of the preamplifier module in the first signal processing unit, and in the second voice propagation path, the pickup is connected to the input end of the preamplifier module in the second signal processing unit.

[0012] Preferably, the shell includes an upper shell and a bottom shell, and the buttons include an intercom button and a record and playback button arranged on the surface of the upper shell, the intercom button is connected to the main control module, and is used to control the on and off of the intercom enable control module; the record and playback button is connected to the main control module, and is used to control the on and off of the record and playback enable control module.

[0013] Preferably, a recording and playback audio circuit for playing recorded audio is also provided, the recording and playback audio circuit includes a recording and playback module, the main control module is connected to the recording and playback module, the recording and playback module is connected to the signal input end of the recording and playback enable control module, and the signal output end of the recording and playback enable control module is connected to the input end of the side tone elimination module in the first signal processing unit.

[0014] Preferably, a playback port is also provided on the surface of the housing, and the speaker is provided inside the playback port.

[0015] Preferably, the control circuit is further provided with an intercom adjustment knob and a play adjustment knob, and the intercom adjustment knob and the play adjustment knob are respectively connected to the power amplification modules of the first signal processing unit and the second signal processing unit.

[0016] Preferably, a counterweight is also provided in the housing.

[0017] Preferably, an indication area is also provided on the surface of the housing, and a plurality of indicator lights connected to the control circuit are provided in the indication area.

[0018] Compared with the prior art, the utility model has the beneficial effect that: in the radiology department voice intercom recording and playback system, two voice transmission routes with opposite transmission directions are arranged, thereby realizing two-way real-time intercom between the equipment room and the operation room in the radiology department.

[0019] In the radiology department voice intercom recording and playback system, an enabling control module is provided. When the doctor needs to speak to the patient in the equipment room, he needs to press a button to turn on the intercom enabling control module to complete the task. This ensures the subjectivity of the doctor's speaking and avoids interference from the operating room to the equipment room. The patient in the equipment room can directly speak to the doctor in the operating room without triggering, which is particularly suitable for use in the radiology department.

[0020] A counterweight is arranged in the shell of the radiology department voice intercom recording and playback system to keep the system stable when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the front view of the radiology department's voice intercom recording and playback system.

[0022] Figure 2 for Figure 1 Top view of the .

[0023] Figure 3 for Figure 1 Rear view of.

[0024] Figure 4 for Figure 1 AA section view.

[0025] Figure 5 This is the principle block diagram of the control circuit of the radiology department's voice intercom recording and playback system.

[0026] Figure 6 This is the circuit schematic diagram of the main control module of the control circuit of the radiology department's voice intercom recording and playback system.

[0027] Figure 7This is the circuit schematic diagram of the recording and playback module of the radiology department's voice intercom recording and playback system control circuit.

[0028] Figure 8 This is the circuit schematic diagram of the intercom enable control module and the recording and playback enable control module of the radiology department's voice intercom recording and playback system control circuit.

[0029] Fig. 9 This is the circuit schematic diagram of the preamplifier module of the control circuit of the radiology department's voice intercom recording and playback system.

[0030] Fig.10 This is the circuit schematic diagram of the sidetone elimination module of the control circuit of the radiology department's voice intercom recording and playback system.

[0031] Fig.11 This is the circuit schematic diagram of the power amplifier module of the control circuit of the radiology department's voice intercom recording and playback system.

[0032] Among them: 1. Pickup 2. Play port 3. Upper shell 4. Intercom adjustment knob 5. Play adjustment knob 6. Indicator area 7. Intercom button 8. Bottom shell 9. Record and play button 10. Threading hole 11. Main control board 12. Counterweight. DETAILED DESCRIPTION

[0033] Figures 1 to 11 It is the best embodiment of the utility model, and the following Figures 1 to 11 The utility model is further described.

[0034] like Figure 1~2 As shown, a radiology department voice intercom recording and playback system (hereinafter referred to as the system) includes a housing, which is assembled from a bottom housing 8 and an upper housing 3, and the upper surface of the upper housing 3 is the front panel of the system. Figure 4 A counterweight block 12 is arranged at the bottom of the inner cavity of the shell to maintain the stability of the system when in use. A main control board 11 is arranged on the inner side of the front panel, and the control circuit of the system is arranged on the main control board 11.

[0035] A playback port 2 is provided at one end of the front side of the front panel, and a speaker is provided in the playback port 2 for playing the voice of the patient in the equipment room. A plurality of recording and playback buttons 9 are arranged side by side on one side of the playback port 2, and an intercom adjustment knob 4 and a playback adjustment knob 5 are arranged side by side on the rear side of the recording and playback buttons 9. The intercom adjustment knob 4 is used to adjust the volume of the doctor's voice in the operation room, that is, the volume of the doctor's voice to the patient, and the playback adjustment knob 5 is used to adjust the volume of the sound at the playback port 2, that is, the volume of the patient's voice to the doctor. An intercom button 7 is also provided on the side of the playback adjustment knob 5, and the doctor can speak to the patient in the equipment room after pressing the intercom button 7. A microphone 1 is provided at one end of the rear side of the front panel for collecting the doctor's voice, and an indication area 6 is provided at the other end of the rear side of the front panel, and a plurality of indicator lights are arranged side by side in the indication area 6 for indicating different working states of the system.

[0036] The pickup 1, the speaker in the playback port 2, the recording and playback button 9, the intercom adjustment knob 4, the playback adjustment knob 5, the indicator light 6 and the intercom button 7 are evenly connected to the control circuit on the main control board 11. Figure 3 As shown, a wire threading hole 10 is provided on the rear side of the housing for leading out wires (power lines and signal lines) connected to the main control board 11 .

[0037] like Figure 5 As shown, the control circuit includes a main control module, and the intercom button 7 and the recording and playback button 9 are connected to the input end of the main control module. The output end of the main control module is connected to the input end of the intercom enable control module and the recording and playback enable control module respectively, and the main control module controls the on-off state of the intercom enable control module and the recording and playback enable control module respectively by sending control signals. The main control module also communicates with the recording and playback module.

[0038] The microphone 1 is connected to the input end of the preamplifier module through the intercom enabling control module, the output end of the preamplifier module is connected to the input end of the sidetone elimination module, the output end of the sidetone elimination module is connected to the input end of the power amplifier module, and the output end of the power amplifier module is connected to the speaker set in the equipment room, so that the patient can hear the doctor's shouting. When the intercom enabling control module is a passage, the microphone 1 collects the doctor's voice and then passes through the preamplifier module, the sidetone elimination module and the power amplifier module in sequence before playing in the speaker, and the voice propagation route of this route is defined as the first voice propagation route. In the control circuit of this system, there is also a voice route for the patient to talk to the doctor, that is, the second voice propagation route (not shown in the figure). The second voice propagation route is similar to the first voice propagation route in structure, including a microphone, a preamplifier module, a sidetone elimination module, and a power amplifier module connected in sequence. The output end of the power amplifier module in the second voice propagation route is connected to the speaker set on the back side of the playback port 2. The microphone in the second voice propagation route is set in the equipment room, which is used to realize the patient shouting to the doctor, thereby realizing the dialogue between the doctor and the patient. In the first voice propagation route and the second voice propagation route, the circuit structures corresponding to the same modules are the same.

[0039] The microphone is connected to the input end of the recording and playback module, and the output end of the recording and playback module is connected to the input end of the side tone elimination module through the recording and playback enabling control module. When the recording and playback enabling control module is in an on state under the control of the main control module, the recorded voice can be directly sent to the side tone elimination module through the recording and playback module, and then played through the speaker after passing through the power amplifier module.

[0040] like Figure 6 As shown, the main control module includes an integrated chip U1 of model STM32F103CBT6. Pin 1 of the integrated chip U1 is connected to a 3.3V power supply through a capacitor C1, and pins 2 to 6 are suspended. Pin 7 of the integrated chip U1 is connected to a 3.3V power supply through a resistor R7, pin 8 is grounded, and pin 9 is simultaneously connected to one end of capacitor C6 and the positive electrode of electrolytic capacitor C5, and the other end of capacitor C6 and the positive and negative electrodes of electrolytic capacitor C5 are grounded. Pins 10 to 12 of the integrated chip U1 are suspended, and pin 13 of the integrated chip U1 is connected to pin 2 of button K5 and one end of resistor R1. Button K5 is the above-mentioned intercom button 7, and pin 3 of button K5 is grounded, and the other end of resistor R1 is connected to a 3.3V power supply. Pins 14 to 15 of the integrated chip U1 are respectively connected to two indicator lights in the indication area 6, indicating the recording state and the speaking state respectively. Pins 16 and 25 of the integrated chip U1 are respectively connected to the above-mentioned intercom enable control module and recording and playback enable control module.

[0041] Pins 18~19 and 21~22 of the integrated chip U1 are suspended, pin 20 is grounded through resistor R9, and pin 23 is grounded. Pin 24 of the integrated chip U1 is connected to a 3.3V power supply and one end of capacitor C2, and the other end of capacitor C2 is grounded. Pins 26~28 and 32 of the integrated chip U1 communicate with the above-mentioned recording and playback module. The 3.3V power supply is connected to one end of resistors R2~R5 at the same time, and the other end of resistor R2 is connected to pin 31 of the integrated chip U1 and pin 2 of key K4; the other end of resistor R3 is connected to pin 30 of the integrated chip U1 and pin 2 of key K3; the other end of resistor R4 is connected to pin 29 of the integrated chip U1 and pin 2 of key K2; the other end of resistor R5 is connected to pin 17 of the integrated chip U1 and pin 2 of key K1, and pin 3 of keys K1~K4 are grounded. Keys K1~K4 correspond to the above-mentioned recording and playback keys 9 respectively.

[0042] Pins 33-34 of integrated chip U1 are suspended, pin 35 is grounded, pin 36 is connected to 3.3V power supply and one end of capacitor C3, and the other end of capacitor C3 is grounded. Pins 37-43 of integrated chip U1 are suspended, pin 44 is grounded through resistor R6, pins 45-46 are suspended, pin 47 is grounded, pin 48 is connected to 3.3V power supply and one end of capacitor C4, and the other end of capacitor C4 is grounded.

[0043] like Figure 7 As shown, the above-mentioned recording and playback module includes an integrated chip U2 of model ISD1730PYI, wherein pin 1 of the integrated chip U2 is connected to a 3.3V power supply, pin 2 is connected to one end of a resistor R10, the other end of the resistor R10 is connected to the cathode of a light-emitting diode LED1, and the anode of the light-emitting diode LED1 is connected to a 3.3V power supply. Pin 3 of the integrated chip U2 is connected to pin 4 of a key K6 and one end of a capacitor C7, and pin 2 of the key K6 is connected to the other end of the capacitor C7 and grounded. Pins 4 to 7 of the integrated chip U2 are used to be connected to the integrated chip U1. Pin 8 of the integrated chip U2 is simultaneously connected to one end of a capacitor C9, the negative electrode of an electrolytic capacitor C10, pin 12 and the negative electrode of an electrolytic capacitor C12. The other end of the capacitor C9 is simultaneously connected to the positive electrode of an electrolytic capacitor C12, the positive electrode of an electrolytic capacitor C10, one end of a capacitor C11 and a 3.3V power supply.

[0044] Pin 9 of the integrated chip U2 is suspended, and pin 10 is connected to the above-mentioned microphone. Pin 11 of the integrated chip U2 is connected to one end of capacitor C8, and the other end of capacitor C8 is grounded through resistor R11. Pin 13 of the integrated chip U2 is suspended, and pin 14 is connected to a 3.3V power supply. Pin 15 of the integrated chip U2 is connected to the above-mentioned recording and playback enabling control module, and pin 16 of the integrated chip U2 is simultaneously connected to pin 28, one end of capacitor C13, the negative electrode of electrolytic capacitor C14, one end of capacitor C15, the negative electrode of electrolytic capacitor C16, and the ground terminal, and the other end of capacitor C13, the positive electrode of electrolytic capacitor C14, the other end of capacitor C15, and the positive electrode of electrolytic capacitor C16 are connected to a 3.3V power supply. Pin 18 of the integrated chip U2 is connected to the positive electrode of electrolytic capacitor C17, and the negative electrode of electrolytic capacitor C17 is grounded. Pins 17, 19, 22~27 of the integrated chip U2 are left floating, pin 20 is grounded through resistor R12, and pin 21 is connected to a 3.3V power supply.

[0045] like Figure 8 As shown, the above-mentioned intercom enable control module and recording and playback enable control module are both optocoupler chips U3 and U4 of model PC817X2NSZW. Pin 1 of optocoupler chip U3 is connected to pin 16 of integrated chip U1, pin 2 is grounded through resistor R13, pin 4 is connected to pickup 1, and pin 3 is connected to the preamplifier module. Pin 1 of optocoupler chip U4 is connected to pin 25 of integrated chip U1, pin 2 is grounded through resistor R14, pin 4 is connected to pin 15 of integrated chip U2, and pin 3 is connected to the side tone elimination module.

[0046] like Fig. 9 As shown, the preamplifier module includes an integrated operational amplifier U5, and a terminal CN2, the terminal CN2 is externally connected to the pickup 1, the 2nd pin of the terminal CN2 is connected to the 4th pin of the optocoupler chip U3, the 3rd pin of the optocoupler chip U3 is connected to the positive electrode of the electrolytic capacitor C24, the negative electrode of the electrolytic capacitor C24 is connected to one end of the resistor R18 and the in-phase input end of the integrated operational amplifier U5, and the other end of the resistor R18 is grounded. The reverse input end of the integrated operational amplifier U5 is connected to one end of the resistors R16~R17, the other end of the resistor R16 is connected to the positive electrode of the electrolytic capacitor C23, and the negative electrode of the electrolytic capacitor C23 is grounded. The output end of the integrated operational amplifier U5 is also connected to the other end of the resistor R17 and is grounded through the potentiometer W3, and the adjustment end of the potentiometer W3 is connected to the side tone elimination module.

[0047] like Fig.10As shown, in the side tone elimination module, the adjustment end of the potentiometer W3 is simultaneously connected to one end of the resistors R19~R20 and the base of the transistor Q1, the emitter of the transistor Q1 is simultaneously connected to one end of the resistor R21 and the positive electrode of the electrolytic capacitor C26, and the collector of the transistor Q1 is simultaneously connected to one end of the resistor R22 and the positive electrode of the electrolytic capacitor C27. The other ends of the resistors R19 and R21 are connected to a 12V power supply, and the other ends of the resistors R20 and R22 are connected to ground. The negative electrodes of the electrolytic capacitors C26~C27 are connected to the two ends of the potentiometer W2, and the adjustment end of the potentiometer W2 is connected to the power amplifier module.

[0048] like Fig.11 As shown, the power amplifier module includes an integrated chip U6 of model LM386M-1 / NOPB, and the 1st and 8th pins of the integrated chip U6 are respectively connected to the positive and negative electrodes of the electrolytic capacitor C23. The 2nd pin of the integrated chip U6 is connected to one end of the resistor R15 and the ground terminal, and the other end of the resistor R15 is connected in series with the capacitor C19 to connect the 5th pin of the integrated chip U6 and the positive electrode of the electrolytic capacitor C21, and the negative electrode of the electrolytic capacitor C21 is connected to the terminal CN1, and the terminal CN1 is externally connected to the speaker located in the equipment room. The 3rd pin of the integrated chip U3 is connected to the adjustment end of the potentiometer W1, one end of the potentiometer W1 is grounded, and the other end is connected to the negative electrode of the electrolytic capacitor C18, and the positive electrode of the electrolytic capacitor C18 is connected to the adjustment end of the potentiometer W2. The potentiometer W1 is the above-mentioned intercom adjustment knob 4. As can be seen from the above, in the control circuit of this system, a second voice transmission route is also provided, and the above-mentioned playback adjustment knob 5 is provided in the second language transmission route.

[0049] Pin 4 of the integrated chip U6 is grounded, and pin 6 is connected to one end of capacitor C20, the positive electrode of electrolytic capacitor C22, and a 12V power supply. The negative electrodes of capacitor C20 and electrolytic capacitor C22 are grounded, and pin 7 of the integrated chip U6 is left floating.

[0050] The specific working process and working principle are as follows: When the doctor in the operating room needs to speak to the patient in the equipment room, he presses the intercom button 7, the potential at the corresponding pin of the integrated chip U1 changes, and its 16th pin outputs a high-level signal, driving the 3rd and 4th pins of the optocoupler chip U3 to conduct. After the microphone 1 receives the doctor's voice, it is sent to the preamplifier module through the 4th and 3rd pins of the optocoupler chip U3 for amplification, and then filtered by the sidetone elimination module, and finally played by the speaker connected to the terminal CN1 after passing through the power amplifier module.

[0051] When the doctor in the operating room needs to play the pre-recorded voice to the patient in the equipment room, the doctor presses the corresponding record and play button 9, and the integrated chip U1 sends a control signal to the integrated chip U2 while its 25-pin outputs a high-level signal, driving the 3-pin and 4-pin of the optocoupler chip U4 to conduct. After receiving the control signal of the integrated chip U1, the integrated chip U2 plays the pre-recorded voice through its 15-pin. The voice signal is sent to the preamplifier module through the 4-pin and 3-pin of the optocoupler chip U4 for amplification, and then filtered by the sidetone elimination module, and finally played by the speaker connected to the terminal CN1 after passing through the power amplifier module.

[0052] If the patient in the equipment room needs to give feedback to the doctor in the operating room, the patient's voice is collected by a microphone installed in the equipment room, and then transmitted to the operating room through the preamplifier module, sidetone elimination module and power amplifier module in the above-mentioned second voice transmission route, and the voice is played through the speaker installed at the playback port 2, thereby realizing two-way transmission of voice between doctors and patients.

[0053] When voice recording is required, long press the corresponding recording and playback button 9, and the integrated chip U1 sends a control signal to the integrated chip U2. At this time, the integrated chip U2 is in recording mode, and audio is recorded through the microphone connected to the integrated chip U2. When the playback button 9 is short pressed again, the latest recorded audio is played according to the above steps.

[0054] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A radiology department voice intercom recording and playback system, comprising a housing, a microphone and a plurality of buttons are arranged on the surface of the housing, a main control board (11) is arranged inside the housing, a control circuit is arranged on the main control board (11), the microphone and the plurality of buttons are connected to the control circuit, Features: The control circuit includes a main control module and an enabling control module. The main control module is connected to the enabling control module and controls the on and off of the enabling control module according to the key status; Two voice propagation routes with opposite propagation directions are also provided. In the first voice propagation route, the microphone arranged on the shell is connected to the first signal processing unit through the enabling control module, and the first signal processing unit is connected to the audio; in the second voice propagation route, the microphone is connected to the speaker arranged on the shell through the second signal processing unit.

2. The radiology department voice intercom recording and playback system according to claim 1, Features: The enabling control module includes an intercom enabling control module and a recording and playback enabling control module. The microphone in the first voice transmission route is connected to the signal input end of the intercom enabling control module, and the signal output end of the intercom enabling control module is connected to the audio through the first signal processing unit.

3. The radiology department voice intercom recording and playback system according to claim 2, Features: The first signal processing unit and the second signal processing unit include a preamplifier module, a side tone elimination module and a power amplifier module which are connected in sequence; in the first voice propagation path, the signal output end of the intercom enable control module is connected to the input end of the preamplifier module in the first signal processing unit, and in the second voice propagation path, the microphone is connected to the input end of the preamplifier module in the second signal processing unit.

4. The radiology department voice intercom recording and playback system according to claim 2, Features: The housing comprises an upper housing (3) and a bottom housing (8), and the buttons comprise an intercom button (7) and a recording and playback button (9) arranged on the surface of the upper housing (3); the intercom button (7) is connected to the main control module and is used to control the on and off of the intercom enable control module; the recording and playback button (9) is connected to the main control module and is used to control the on and off of the recording and playback enable control module.

5. The radiology department voice intercom recording and playback system according to claim 3, Features: A recording and playback audio circuit for playing recorded audio is also provided, and the recording and playback audio circuit includes a recording and playback module. The main control module is connected to the recording and playback module, and the recording and playback module is connected to the signal input end of the recording and playback enable control module. The signal output end of the recording and playback enable control module is connected to the input end of the side tone elimination module in the first signal processing unit.

6. The radiology department voice intercom recording and playback system according to claim 1, Features: A playback port (2) is also provided on the surface of the housing, and a speaker is provided inside the playback port (2).

7. The radiology department voice intercom recording and playback system according to claim 2, Features: The control circuit is also provided with an intercom adjustment knob (4) and a playback adjustment knob (5), and the intercom adjustment knob (4) and the playback adjustment knob (5) are respectively connected to the power amplification modules of the first signal processing unit and the second signal processing unit.

8. The radiology department voice intercom recording and playback system according to claim 1, Features: A counterweight (12) is also arranged inside the housing.

9. The radiology department voice intercom recording and playback system according to claim 1, Features: An indication area (6) is also provided on the surface of the housing, and a plurality of indicator lights connected to the control circuit are provided in the indication area (6).

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