CN209787185U - Communication safety monitoring system - Google Patents
Communication safety monitoring system Download PDFInfo
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- CN209787185U CN209787185U CN201921105227.7U CN201921105227U CN209787185U CN 209787185 U CN209787185 U CN 209787185U CN 201921105227 U CN201921105227 U CN 201921105227U CN 209787185 U CN209787185 U CN 209787185U
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Abstract
The utility model discloses a communication safety monitoring system, including frequency acquisition circuit, separation calibration circuit and filtering transmitting circuit, the signal of input in the analog signal transmission path among the frequency acquisition circuit collection communication safety monitoring system, separation calibration circuit divides two way receiving frequency acquisition circuit output signal, the application is all the way moved and is put ware AR1 cophase and enlarge, two way application silicon controlled rectifier VTL1, stabilivolt D4 constitute the combined circuit and filter high level signal and be triode Q2 base electric potential, and triode Q2, triode Q1 constitutes the potential difference that switch circuit detected two way signals, filtering transmitting circuit application inductance L4 and electric capacity C4 at last, electric capacity C5 constitutes pi type filter circuit filtering, send to in the remote control terminal through signal transmitter E1, can convert frequency signal into the calibration signal at remote control terminal.
Description
Technical Field
The utility model relates to the technical field of circuits, especially, relate to a communication safety monitoring system.
background
At present, along with the continuous development of science and technology, communication technology also develops more and more, communication safety monitoring system mainly includes remote control terminal, signal transmission module and signal acquisition module, need send to remote control terminal in through signal transmission module after the communication signal modulation, for preventing that the signal can take place the frequency hopping in transmission process, the signal attenuation problem, consequently need carry out real-time supervision to the signal, the remote control terminal of being convenient for is to the more accurate analysis of received signal.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming the defect of prior art, an object of the utility model is to provide a communication safety monitoring system, the signal of input in the analog signal transmission passageway among the communication safety monitoring system of can real-time detection, convert frequency signal into remote control terminal's calibration signal simultaneously.
The technical scheme for solving the problem is as follows: a communication safety monitoring system comprises a frequency acquisition circuit, a separation calibration circuit and a filtering emission circuit, the frequency acquisition circuit acquires signals at the input end of an analog signal transmission channel in the communication safety monitoring system, the analog signal transmission channel is used for receiving modulated analog signals by a control terminal of the communication safety monitoring system, the separation calibration circuit is divided into two paths to receive the output signals of the frequency acquisition circuit, one path is amplified in phase by an operational amplifier AR1, the other path is amplified in phase by a thyristor VTL1 and a voltage regulator tube D4 to form a composite circuit to screen high-level signals into the base electrode potential of a triode Q2, the triode Q2 and the triode Q1 form a switching circuit for detecting the potential difference of the two paths of signals, and finally the filter transmitting circuit uses an inductor L4, a capacitor C4 and a capacitor C5 to form a pi-type filter circuit for filtering, and the pi-type filter circuit is transmitted into a remote control terminal through a signal transmitter E1;
the separate calibration circuit comprises a diode D2, the anode of a diode D2 is connected with the anode of a diode D3, the cathode of a diode D2 is connected with one end of a resistor R2, the other end of the resistor R2 is connected with the cathode of a voltage regulator tube D4 and the anode of a thyristor VTL1, the control electrode of the controlled silicon VTL1 is connected with the anode of a voltage regulator tube D4, one end of a resistor R3 and one end of a capacitor C4, the other ends of the resistor R3 and the capacitor C4 are grounded, the negative electrode of the controlled silicon VTL1 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with the base electrode of a triode Q2, the negative electrode of a diode D3 is connected with the non-inverting input end of an amplifier AR1 and one end of a resistor R5, the inverting input end of an amplifier AR1 is grounded, the output end of the amplifier AR1 is connected with the other end of a resistor R5, the base electrode of a triode Q1 and the emitter electrode of a triode Q2, the emitter electrode of a triode Q1 is connected with one end of a resistor R7, the other end of a resistor R7 is grounded, and the collector electrode of a triode Q1 is connected with one end of a resistor.
Through the technical scheme, the beneficial effects of the utility model are that:
1. The operational amplifier AR1 is used for amplifying signal power in phase to ensure the conducting voltage intensity of the trigger triode Q2 and the triode Q1, a composite circuit consisting of a thyristor VTL1 and a voltage regulator tube D4 is used for screening a high level signal as the base electrode potential of the triode Q2, the switching property of the thyristor VTL1 is used for judging whether the potential of the output signal of the frequency acquisition circuit is abnormal or not, in order to further ensure the precision of the detection signal and prevent errors, a switching circuit consisting of a triode Q2 and a triode Q1 is used for detecting the potential difference of the two signals, the potential difference of the two signals is utilized to further judge whether the output signal of the frequency acquisition circuit is abnormal or not, when the signal is abnormal, the signal is a high level signal, the triode Q2 is triggered, the triode Q1 forms a switching circuit to be conducted, otherwise, the switching circuit is not conducted, and accurate judgment of the signal in the analog signal transmission channel in the communication safety monitoring system is achieved.
Drawings
fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The embodiment one, a communication safety monitoring system, includes a frequency acquisition circuit, a separation calibration circuit and a filtering emission circuit, the frequency acquisition circuit acquires signals at the input end of an analog signal transmission channel in the communication safety monitoring system, the analog signal transmission channel is used for receiving modulated analog signals by a control terminal of the communication safety monitoring system, the separation calibration circuit is divided into two paths to receive the output signals of the frequency acquisition circuit, one path is amplified in phase by an operational amplifier AR1, the other path is amplified in phase by a thyristor VTL1 and a voltage regulator tube D4 to form a composite circuit to screen high-level signals into the base electrode potential of a triode Q2, the triode Q2 and the triode Q1 form a switching circuit for detecting the potential difference of the two paths of signals, and finally the filter transmitting circuit uses an inductor L4, a capacitor C4 and a capacitor C5 to form a pi-type filter circuit for filtering, and the pi-type filter circuit is transmitted into a remote control terminal through a signal transmitter E1;
The separation calibration circuit receives signals output by the frequency acquisition circuit in two paths, one path of the separation calibration circuit is amplified in phase by an operational amplifier AR1, the signal power is amplified, the conducting voltage intensity of a trigger triode Q2 and a triode Q1 is ensured, the other path of the separation calibration circuit is used for screening a high-level signal to be a base electrode potential of a triode Q2 by a composite circuit formed by a thyristor VTL1 and a voltage stabilizing tube D4, whether the potential of the signals output by the frequency acquisition circuit is abnormal is judged by utilizing the switching property of the thyristor VTL1, in order to further ensure the precision of the detected signals and prevent errors, the potential difference of the two paths of signals is detected by a switching circuit formed by the triode Q2 and the triode Q1, whether the signals output by the frequency acquisition circuit are abnormal is further judged by utilizing the potential difference of the two paths of signals, when the signals are abnormal, the signals are high-level signals, the trigger triode Q2 and the triode Q1 form a, the anode of the diode D2 is connected with the anode of the diode D3, the cathode of the diode D2 is connected with one end of the resistor R2, the other end of the resistor R2 is connected with the cathode of the voltage regulator tube D4 and the anode of the thyristor VTL1, the control electrode of the thyristor VTL1 is connected with the anode of the voltage regulator tube D1 and one end of the resistor R1 and the capacitor C1, the other ends of the resistor R1 and the capacitor C1 are grounded, the cathode of the thyristor VTL1 is connected with one end of the resistor R1, the other end of the resistor R1 is connected with the base of the transistor Q1, the cathode of the resistor R1 is connected with the non-inverting input end of the transistor AR1 and one end of the resistor R1, the inverting input end of the transistor AR1 is grounded, the output end of the amplifier AR1 is connected with the other end of the resistor R1 and the base of the transistor Q1, the emitter of the transistor Q1, and the collector of the transistor Q1 are connected with one end of the transistor R1.
In the second embodiment, based on the first embodiment, the filtering and transmitting circuit uses a pi-type filtering circuit composed of an inductor L4, a capacitor C4, and a capacitor C5 to filter out signal noise, and transmits the signal noise to the remote control terminal through a signal transmitter E1, when the signal is abnormal, the remote control terminal can perform error correction on the received signal in time, one end of the inductor L4 is connected to the other end of the resistor R6 and one end of the capacitor C4, the other end of the capacitor C4 is grounded, the other end of the inductor L4 is connected to one end of the resistor R8 and one end of the capacitor C5, the other end of the capacitor C5 is grounded, and the other end of the resistor R8 is connected to the signal transmitter E1.
In the third embodiment, on the basis of the second embodiment, the frequency acquisition circuit selects a frequency collector J1 with the model number of SJ-ADC to acquire signals at an input end in an analog signal transmission channel in the communication safety monitoring system, a power supply of the frequency collector J1 is connected with one end of a capacitor C1 and +5V of a power supply, a grounding end of a frequency collector J1 is grounded, an output of the frequency collector J1 is connected with the other end of a capacitor C1, one end of a resistor R1 and a cathode of a voltage regulator tube D1, an anode of the voltage regulator tube D1 is grounded, the other end of the resistor R1 is connected with one end of the capacitor C2 and an anode of a diode D2, and the other end of the capacitor C2 is grounded.
The utility model discloses when specifically using, a communication safety monitoring system, including frequency acquisition circuit, separation calibration circuit and filtering transmitting circuit, the signal of input in the analog signal transmission passageway among the frequency acquisition circuit collection communication safety monitoring system, this analog signal transmission passageway is the passageway that communication safety monitoring system control terminal received the analog signal after the modulation and used, separation calibration circuit divides two ways to receive frequency acquisition circuit output signal, all the way uses fortune amplifier AR1 cophase to amplify, amplifies signal power, guarantees the conduction voltage intensity of trigger triode Q2, triode Q1, and two ways uses silicon controlled rectifier VTL1, stabilivolt D4 to constitute composite circuit and screen high level signal and be triode Q2 base electric potential, utilizes the switching property of silicon controlled rectifier VTL1, judges whether the electric potential of frequency acquisition circuit output signal is unusual, in order to further guarantee the precision of detected signal, the method is characterized in that errors are prevented, a triode Q2 and a triode Q1 are used for forming a switching circuit to detect the potential difference of two paths of signals, the potential difference of the two paths of signals is utilized to further judge whether the output signals of the frequency acquisition circuit are abnormal, when the signals are abnormal, the signals are high-level signals, the switching circuit formed by the trigger triode Q2 and the triode Q1 is conducted, otherwise, the switching circuit is not conducted, accurate judgment of signals in an analog signal transmission channel in a communication safety monitoring system is achieved, finally, a filter transmitting circuit uses an inductor L4, a capacitor C4 and a capacitor C5 to form a pi-type filter circuit for filtering, and the filter transmitting circuit is transmitted into a remote control terminal through.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (3)
1. A communication safety monitoring system comprises a frequency acquisition circuit, a separation calibration circuit and a filtering emission circuit, and is characterized in that: the frequency acquisition circuit acquires signals of an input end in an analog signal transmission channel in the communication safety monitoring system, the analog signal transmission channel is used for receiving modulated analog signals by a control terminal of the communication safety monitoring system, the separation calibration circuit receives the signals output by the frequency acquisition circuit in two paths, one path of the signals is amplified in phase by an operational amplifier AR1, the other path of the signals is filtered by a composite circuit consisting of a silicon controlled rectifier VTL1 and a voltage regulator tube D4 to obtain a base potential of a triode Q2, a switching circuit consisting of a triode Q2 and a triode Q1 is used for detecting potential differences of the two paths of signals, and finally, a filter emission circuit uses an inductor L4, a capacitor C4 and a capacitor C5 to form a pi-shaped filter circuit for filtering and sends the filtered signals to a remote control terminal through a signal emitter;
The separate calibration circuit comprises a diode D2, the anode of a diode D2 is connected with the anode of a diode D3, the cathode of a diode D2 is connected with one end of a resistor R2, the other end of the resistor R2 is connected with the cathode of a voltage regulator tube D4 and the anode of a thyristor VTL1, the control electrode of the controlled silicon VTL1 is connected with the anode of a voltage regulator tube D4, one end of a resistor R3 and one end of a capacitor C4, the other ends of the resistor R3 and the capacitor C4 are grounded, the negative electrode of the controlled silicon VTL1 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with the base electrode of a triode Q2, the negative electrode of a diode D3 is connected with the non-inverting input end of an amplifier AR1 and one end of a resistor R5, the inverting input end of an amplifier AR1 is grounded, the output end of the amplifier AR1 is connected with the other end of a resistor R5, the base electrode of a triode Q1 and the emitter electrode of a triode Q2, the emitter electrode of a triode Q1 is connected with one end of a resistor R7, the other end of a resistor R7 is grounded, and the collector electrode of a triode Q1 is connected with one end of a resistor.
2. A communication security monitoring system according to claim 1, characterized in that: the filter transmitting circuit comprises an inductor L4, one end of the inductor L4 is connected with the other end of a resistor R6 and one end of a capacitor C4, the other end of the capacitor C4 is grounded, the other end of the inductor L4 is connected with one end of a resistor R8 and one end of a capacitor C5, the other end of the capacitor C5 is grounded, and the other end of the resistor R8 is connected with a signal transmitter E1.
3. A communication security monitoring system according to claim 2, characterized in that: the frequency acquisition circuit comprises a frequency collector J1 with the model of SJ-ADC, a power supply of the frequency collector J1 is connected with one end of a capacitor C1 and a power supply +5V, the grounding end of the frequency collector J1 is grounded, the output end of the frequency collector J1 is connected with the other end of the capacitor C1, one end of a resistor R1 and the cathode of a voltage regulator tube D1, the anode of the voltage regulator tube D1 is grounded, the other end of the resistor R1 is connected with one end of the capacitor C2 and the anode of a diode D2, and the other end of the capacitor C2 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921105227.7U CN209787185U (en) | 2019-07-15 | 2019-07-15 | Communication safety monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921105227.7U CN209787185U (en) | 2019-07-15 | 2019-07-15 | Communication safety monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN209787185U true CN209787185U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921105227.7U Expired - Fee Related CN209787185U (en) | 2019-07-15 | 2019-07-15 | Communication safety monitoring system |
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| CN (1) | CN209787185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113517898A (en) * | 2021-04-27 | 2021-10-19 | 河南城建学院 | Bridge construction signal processing apparatus |
-
2019
- 2019-07-15 CN CN201921105227.7U patent/CN209787185U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113517898A (en) * | 2021-04-27 | 2021-10-19 | 河南城建学院 | Bridge construction signal processing apparatus |
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Granted publication date: 20191213 Termination date: 20200715 |
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| CF01 | Termination of patent right due to non-payment of annual fee |