CN210927072U - Remote signaling signal acquisition system with function of false wiring protection alarm - Google Patents
Remote signaling signal acquisition system with function of false wiring protection alarm Download PDFInfo
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- CN210927072U CN210927072U CN201922022096.2U CN201922022096U CN210927072U CN 210927072 U CN210927072 U CN 210927072U CN 201922022096 U CN201922022096 U CN 201922022096U CN 210927072 U CN210927072 U CN 210927072U
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Abstract
The utility model relates to a telesignalling signal acquisition system with wrong wiring protection is reported to police, this system are used for the collection of multichannel telesignalling signal, including protection circuit and signal processing circuit, each way telesignalling signal disposes protection circuit and signal processing circuit all the way respectively, the protection circuit input connect the telesignalling signal input, the collection port of protection circuit's output through signal processing circuit connection power terminal equipment, this system still includes a ground connection shared alarm circuit, protection circuit's earthing terminal through ground connection shared alarm circuit ground connection, when the protection circuit input does not have the telesignalling signal or the telesignalling signal is when the allowed range, ground connection shared alarm circuit is by the bypass, when the telesignalling signal of protection circuit input surpasss the allowed range, ground connection shared alarm circuit switches on the warning. Compared with the prior art, the utility model discloses collect protection and report to the police as an organic whole, can protect and remind the field work personnel the very first time when the misconnection line, shorten troubleshooting time.
Description
Technical Field
The utility model relates to a remote signaling signal acquisition system especially relates to a remote signaling signal acquisition system with wrong wiring protection is reported to police.
Background
The intelligent terminal equipment is required to be used in a large amount in the construction process of the smart power grid, and the basic function of the intelligent terminal equipment is to collect on-site remote signaling and remote measuring information and control on-site switching equipment according to a certain strategy or a manual mode.
According to different application sites, remote signaling signals needing to be acquired also have different voltage grades, such as direct current 24V, 48V or 110V, and the like, and an internal circuit is designed according to different voltage grades, so that reliable acquisition of the remote signaling signals is guaranteed.
Because the intelligent terminal has more and complicated field application wiring, a plurality of power supplies with different voltage grades exist, and meanwhile, an alternating-current telemetering signal line exists, and the condition of mis-wiring caused by negligence of constructors frequently occurs in the field construction process. The remote communication line is connected by mistake, and particularly, a signal connected by mistake with a high voltage level enters a remote communication interface, so that the damage of a corresponding board card is often caused in the test process and the corresponding board card cannot be repaired.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a remote signaling signal acquisition system with wrong wiring protection warning in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
a remote signaling signal acquisition system with error wiring protection alarm is used for acquiring multi-path remote signaling signals and comprises a protection circuit and a signal processing circuit, wherein each path of remote signaling signal is respectively provided with a protection circuit and a signal processing circuit, the input end of the protection circuit is connected with the input end of the remote signaling signal, the output end of the protection circuit is connected with an acquisition port of power terminal equipment through the signal processing circuit, the system also comprises a grounding shared alarm circuit, the grounding end of the protection circuit is grounded through the grounding shared alarm circuit, when the input end of the protection circuit has no remote signaling signal or the remote signaling signal is in an allowed range, the grounding shared alarm circuit is bypassed, and when the remote signaling signal at the input end of the protection circuit exceeds the allowed range, the grounding shared alarm circuit is switched on for alarm.
The circuit protection circuit comprises a thermistor and a piezoresistor, wherein a first wiring end of the thermistor is connected with a remote signaling signal input end, a second wiring end of the thermistor is an output end of the protection circuit, the first wiring end of the piezoresistor is connected with a second wiring end of the thermistor, and the second wiring end of the piezoresistor is a grounding end of the protection circuit.
The grounding shared alarm circuit comprises a grounding resistor, a first overvoltage protection transient diode and an alarm branch circuit, wherein the grounding end of the protection circuit is grounded through the grounding resistor, and the first overvoltage protection transient diode and the alarm branch circuit are respectively connected to the grounding resistor in parallel.
The alarm branch comprises one or more of a sound alarm branch and a light alarm branch.
The sound alarm branch comprises a diode and a buzzer, wherein the diode and the buzzer are connected in series.
The light alarm circuit comprises a diode and an indicator light, wherein the diode and the indicator light are connected in series.
The signal processing circuit comprises a first resistor, a second overvoltage protection transient diode, a second resistor and a filter, wherein the first resistor, the second overvoltage protection transient diode and the second resistor are connected in series, the input end of the first resistor is connected to the output end of the protection circuit, the output end of the second resistor is connected with the acquisition port of the power terminal equipment, and the output end of the second resistor is grounded through the filter.
The filter comprises an RC filter.
Compared with the prior art, the utility model has the advantages of as follows: the signal acquisition system of the utility model is provided with a protection circuit and a signal processing circuit, the protection circuit respectively carries out voltage protection on each remote signaling signal, when the input signal voltage exceeds the rated voltage, the front and rear end circuits are protected from physical damage, the signal processing circuit is used for acquiring and isolating remote signaling signals, thereby realizing the effective collection of the remote signaling signals, simultaneously, when the wires are wrongly connected, the voltage of a certain path of input signals exceeds the rated voltage, the ground connection shares the work of the alarm circuit to alarm, the system can alarm at the same time of realizing protection, on one hand, when the wiring of a remote signaling line is wrong, a power terminal equipment circuit board and device for data acquisition can not destroy, and on the other hand, can remind field personnel the very first time, avoids the wiring mistake to be ignored, ensures that equipment operation is normal, shortens the time of troubleshooting mistake simultaneously greatly.
Drawings
Fig. 1 is a schematic circuit diagram of the remote signaling signal acquisition system with the mis-wiring protection alarm of the present invention.
In the figure, 1 is a protection circuit, 2 is a signal processing circuit, and 3 is a ground common alarm circuit.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Note that the following description of the embodiments is merely an example of the nature, and the present invention is not intended to limit the application or the use thereof, and the present invention is not limited to the following embodiments.
Examples
As shown in fig. 1, a remote signaling signal acquisition system with a miswiring protection alarm is used for acquiring multiple remote signaling signals, and the system comprises a protection circuit 1 and a signal processing circuit 2, wherein each remote signaling signal is respectively provided with a protection circuit 1 and a signal processing circuit 2, the input end of the protection circuit 1 is connected with the remote signaling signal input end, the output end of the protection circuit 1 is connected with the acquisition port of power terminal equipment through the signal processing circuit 2, the system further comprises a grounding shared alarm circuit 3, the grounding end of the protection circuit 1 is grounded through the grounding shared alarm circuit 3, when the remote signaling signal is not provided at the input end of the protection circuit 1 or the remote signaling signal is in an allowed range, the grounding shared alarm circuit 3 is bypassed, and when the remote signaling signal at the input end of the protection circuit 1 exceeds the allowed range, the grounding shared alarm circuit 3 is turned on to alarm.
The circuit protection circuit 1 comprises a thermistor and a piezoresistor, wherein a first wiring terminal of the thermistor is connected with a remote signaling signal input end, a second wiring terminal of the thermistor is an output end of the protection circuit 1, a first wiring terminal of the piezoresistor is connected with a second wiring terminal of the thermistor, and the second wiring terminal of the piezoresistor is a grounding end of the protection circuit 1. Taking the first remote signaling signal as an example, the thermistor in the protection circuit 1 in fig. 1 is PTC1 in the figure, and the varistor is VAR1 in the figure.
The grounding shared alarm circuit 3 comprises a grounding resistor, a first overvoltage protection transient diode and an alarm branch circuit, the grounding end of the protection circuit 1 is grounded through the grounding resistor, and the first overvoltage protection transient diode and the alarm branch circuit are respectively connected to the grounding resistor in parallel. In fig. 1, the ground resistance is Ra and the first overvoltage protection transient diode is TVSa.
The alarm branch comprises one or more of a sound alarm branch and a light alarm branch. The sound alarm branch comprises a diode and a buzzer, and the diode and the buzzer are connected in series. The light alarm circuit comprises a diode and an indicator light, and the diode and the indicator light are connected in series. The alarm branch circuit includes but not limited to sound, light and other alarms. The embodiment provides an example of the sound alarm branch, and the sound alarm branch can be configured according to actual needs in the actual application process.
The signal processing circuit 2 comprises a first resistor, a second overvoltage protection transient diode, a second resistor and a filter, the first resistor, the second overvoltage protection transient diode and the second resistor are connected in series, the input end of the first resistor is connected to the output end of the protection circuit 1, the output end of the second resistor is connected with the acquisition port of the power terminal equipment, and the output end of the second resistor is grounded through the filter. The filter comprises an RC filter. Taking the first remote signaling signal as an example, in the signal processing circuit 2 in fig. 1, the first resistor is R1-1, the second overvoltage protection transient diode is TVS1, and the second resistor is R1-2.
The utility model discloses a remote signaling signal acquisition system's theory of operation with wrong wiring protection is reported to police: when no signal is input at the input end of the protection circuit 1 or the input signal is within the allowable range, the protection circuit 1 accesses the signal into the signal processing circuit 2 for normal signal acquisition, the grounding shared alarm circuit 3 is bypassed, and the system does not generate an alarm signal. When the wiring is mistakenly connected, the input signal of the input end of the protection circuit 1 exceeds the allowable range, the protection circuit 1 starts to work, the signal input is cut off, and the rear end circuit is protected; meanwhile, the ground sharing alarm circuit 3 generates an alarm signal output. Taking the sound alarm of this embodiment as an example, when the input signal of the input end of the protection circuit 1 exceeds the allowable range, the voltage dependent resistor in the protection circuit 1 is turned on, the sound alarm branch circuit is turned on, the current can pass through the buzzer to generate an alarm, and meanwhile, the first overvoltage protection transient diode ensures that the buzzer cannot be burnt.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.
Claims (8)
1. A remote signaling signal acquisition system with error wiring protection alarm is characterized in that the system is used for acquiring multi-path remote signaling signals and comprises a protection circuit (1) and a signal processing circuit (2), each path of remote signaling signal is respectively provided with the protection circuit (1) and the signal processing circuit (2), the input end of the protection circuit (1) is connected with the input end of the remote signaling signal, the output end of the protection circuit (1) is connected with an acquisition port of power terminal equipment through the signal processing circuit (2), the system also comprises a grounding common alarm circuit (3), the grounding end of the protection circuit (1) is grounded through the grounding common alarm circuit (3), when no remote signaling signal or the remote signaling signal is in an allowable range at the input end of the protection circuit (1), the grounding common alarm circuit (3) is bypassed, when the remote signaling signal at the input end of the protection circuit (1) exceeds the allowable range, the grounding shared alarm circuit (3) is conducted to alarm.
2. The remote signaling signal acquisition system with the function of false wiring protection alarm according to claim 1, wherein the circuit protection circuit (1) comprises a thermistor and a piezoresistor, a first terminal of the thermistor is connected with a remote signaling signal input end, a second terminal of the thermistor is an output end of the protection circuit (1), a first terminal of the piezoresistor is connected with a second terminal of the thermistor, and a second terminal of the piezoresistor is a grounding end of the protection circuit (1).
3. The remote signaling signal acquisition system with the function of false wire protection alarm according to claim 1, wherein the grounding common alarm circuit (3) comprises a grounding resistor, a first overvoltage protection transient diode and an alarm branch, the grounding end of the protection circuit (1) is grounded through the grounding resistor, and the first overvoltage protection transient diode and the alarm branch are respectively connected in parallel to the grounding resistor.
4. The remote signaling signal acquisition system with the function of protecting the false wiring according to claim 3, wherein the alarm branch comprises one or more of a sound alarm branch and a light alarm branch.
5. The remote signaling signal acquisition system with the function of protecting against misconnection according to claim 4, wherein the acoustic alarm branch comprises a diode and a buzzer, and the diode and the buzzer are connected in series.
6. The remote signaling signal acquisition system with the function of false wire protection alarm as claimed in claim 4, wherein the light alarm circuit comprises a diode and an indicator light, and the diode and the indicator light are connected in series.
7. The remote signaling signal acquisition system with the function of false wire protection alarm according to claim 1, wherein the signal processing circuit (2) comprises a first resistor, a second overvoltage protection transient diode, a second resistor and a filter, the first resistor, the second overvoltage protection transient diode and the second resistor are connected in series, the input end of the first resistor is connected to the output end of the protection circuit (1), the output end of the second resistor is connected to the acquisition port of the power terminal equipment, and the output end of the second resistor is grounded through the filter.
8. The remote signaling signal acquisition system with miswire protection alarm as claimed in claim 7 wherein said filter comprises an RC filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922022096.2U CN210927072U (en) | 2019-11-20 | 2019-11-20 | Remote signaling signal acquisition system with function of false wiring protection alarm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922022096.2U CN210927072U (en) | 2019-11-20 | 2019-11-20 | Remote signaling signal acquisition system with function of false wiring protection alarm |
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| CN210927072U true CN210927072U (en) | 2020-07-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854803A (en) * | 2019-11-20 | 2020-02-28 | 上海欣能信息科技发展有限公司 | A remote signaling signal acquisition system with misconnection protection alarm |
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2019
- 2019-11-20 CN CN201922022096.2U patent/CN210927072U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854803A (en) * | 2019-11-20 | 2020-02-28 | 上海欣能信息科技发展有限公司 | A remote signaling signal acquisition system with misconnection protection alarm |
| CN110854803B (en) * | 2019-11-20 | 2025-03-28 | 上海欣能信息科技发展有限公司 | A remote signal acquisition system with miswiring protection alarm |
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