CN210348270U - Loop state detection device and detector - Google Patents
Loop state detection device and detector Download PDFInfo
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- CN210348270U CN210348270U CN201921110344.2U CN201921110344U CN210348270U CN 210348270 U CN210348270 U CN 210348270U CN 201921110344 U CN201921110344 U CN 201921110344U CN 210348270 U CN210348270 U CN 210348270U
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Abstract
A loop state detection device and a loop state detector comprise a battery module, a voltage stabilizing module and at least one detection module; the battery module stores electric energy and outputs a power supply, the voltage stabilizing module stabilizes the voltage of the power supply to generate a stabilized voltage power supply, and the detection module detects the loop to be detected according to the stabilized voltage power supply to enable the loop to be detected to generate a detection signal and indicates or prompts according to the detection signal; the relay testing device has the advantages that the detection device is convenient to carry and move in relay testing operation, dependence of the detection device on an external power supply is reduced, testing efficiency and precision of field testing operation are improved, testing time is shortened, and potential electricity utilization potential safety hazards caused by consumption of manpower and material resources and detection of loop states of workers under field complex working conditions are reduced.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power overhauls, concretely relates to return circuit state detection device and detector.
Background
At present, in the nuclear power overhaul and maintenance process, the maintenance work of a control circuit of a circuit is very much, especially fault detection needs to be carried out on a plurality of control circuit states during overhaul, and the control circuit generally comprises a contactor, normally open and normally closed contacts of a relay, auxiliary contacts of a circuit breaker, normally open and normally closed contacts of limit switches and the like.
Generally, when testing the state of a control loop, a loop to be tested is closed, a multimeter is used for testing the direct current resistance of the corresponding control loop, and then the data obtained by the test is compared with a preset standard resistance value written in by a program. And if the test data is larger than the preset standard resistance value, judging that the contact resistance of the loop is too large and is unqualified. Often there are many times in actual work to need a plurality of return circuits of simultaneous measurement to the contact resistance to a plurality of return circuits judges, and this kind of condition just needs alone to operate external power supply and lets the contact action to contactor or relay power transmission, and the handheld universal meter of alone measures, and alone carries out data record, alone contrasts data and predetermined standard resistance value, selects the unqualified contact of data, and this kind of condition needs many people field operation simultaneously. When the unit overhaul stopping plate overhauls, the contact return circuits that have a large amount of contactors, relays in very many switch drawers need measure, and whole process consumption time is long consumes the manpower many. In the measuring process, errors of the test data can be easily caused by considering factors, and further the situation of misjudgment can be caused.
Therefore, the problems of low operation efficiency, long detection time, low measurement precision and poor accuracy of loop state detection exist in the traditional technical scheme.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a loop state detection device and detector aims at solving the problem that the operating efficiency that the loop state that exists detected is low, detection time is long, measurement accuracy is low and the accuracy is poor among the traditional technical scheme.
The utility model provides a first aspect of the embodiment provides a return circuit state detection device, include:
the battery module is used for storing electric energy and outputting a power supply;
the voltage stabilizing module is connected with the battery module and used for stabilizing the voltage of the power supply to generate a stabilized voltage power supply;
the detection module is connected with the voltage stabilizing module and used for detecting a loop to be detected according to the voltage stabilizing power supply so as to enable the loop to be detected to generate a detection signal and indicating or prompting according to the detection signal; wherein the detection module comprises:
the current limiting module is connected with the voltage stabilizing module and the loop to be detected and used for limiting the current of the voltage stabilizing power supply to generate a detection power supply;
the interface module is connected with the current limiting module and used for forwarding the detection power supply to detect the loop to be detected so as to generate the detection signal and receiving the detection signal;
the voltage stabilizing and amplifying module is connected with the voltage stabilizing module and the interface module and is used for stabilizing voltage and amplifying the detection signal to generate an amplified detection signal;
the relay module is connected with the voltage stabilizing module and the voltage stabilizing amplifying module and used for generating a first contact signal or a second contact signal according to the amplified detection signal;
the first indicating module is connected with the voltage stabilizing module and the relay module and used for indicating according to the second contact signal and the voltage stabilizing power supply;
and the first prompting module is connected with the voltage stabilizing module and the relay module and used for prompting and alarming according to the first contact signal and the voltage stabilizing power supply.
In one embodiment, the loop state detection device further includes:
a voltage transformation module for performing voltage transformation on an external power supply to generate a first power supply;
the rectification module is connected with the voltage transformation module and used for rectifying the first power supply to generate a rectified power supply;
the first filtering module is connected with the rectifying module and used for filtering and denoising the rectified power supply to generate a target rectified power supply;
the battery module is specifically used for charging and storing electric energy according to the target rectification power supply and outputting the power supply.
In one embodiment, the loop state detection device further includes:
the battery protection module is connected with the first filtering module and the battery module, and is used for detecting the voltage of the battery module to generate a voltage detection signal, performing overcharge protection and overdischarge protection on the battery module according to the voltage detection signal, and connecting or disconnecting the power supply according to a key signal;
and the key module is connected with the battery protection module and used for generating the key signal according to the input of a user.
In one embodiment, the loop state detection device further includes:
the second filtering module is connected with the voltage stabilizing module and used for filtering and denoising the stabilized voltage power supply to generate a target stabilized voltage power supply;
the detection module is specifically used for detecting a loop to be detected according to the target voltage-stabilized power supply so that the loop to be detected generates a detection signal, and indicating or prompting according to the detection signal.
In one embodiment, the current limiting module comprises a first resistor, a first diode and a second resistor;
the first end of the first resistor is connected with the positive electrode of the voltage-stabilized power supply, the first end of the second resistor is the detection signal output end of the current-limiting module, and the second end of the second resistor is connected with the negative electrode of the voltage-stabilized power supply;
the second end of the first resistor is connected with the anode of the first diode, and the cathode of the first diode is the output end of the detection power supply of the current limiting module.
In one embodiment, the voltage stabilizing amplification module comprises a third resistor, a fourth resistor, a first voltage stabilizing diode and a first triode;
the cathode of the first voltage stabilizing diode is a detection signal input end of the voltage stabilizing amplification module;
the emitter of the first triode is the amplified detection signal output end of the voltage-stabilizing amplification module;
the first end of the third resistor is a voltage-stabilizing power input end of the voltage-stabilizing amplification module;
the positive pole of the first voltage-stabilizing diode is connected with the first end of the fourth resistor, the second end of the fourth resistor is connected with the base of the first triode, and the collector of the first triode is connected with the second end of the third resistor.
In one embodiment, the relay module includes a first relay and a second diode;
the first end of the coil of the first relay is connected with the cathode of the second diode, and the second end of the coil of the first relay, the anode of the second diode, the second end of the normally open contact of the first relay and the second end of the normally closed contact of the first relay are connected with the cathode of the regulated power supply;
a first end of a coil of the first relay and a cathode of the second diode are jointly formed into an amplified detection signal input end of the relay module;
the first end of the normally open contact of the first relay is a first contact signal output end of the relay module; and the first end of the normally closed contact of the first relay is a second contact signal output end of the relay module.
In one embodiment, the first prompting module comprises a first light-emitting diode, a fifth resistor and a buzzer;
a first end of the fifth resistor and a first end of the buzzer jointly form a stabilized voltage supply input end of the first prompting module, a second end of the fifth resistor is connected with an anode of the first light-emitting diode, and a cathode of the first light-emitting diode is connected with a second end of the buzzer;
the cathode of the first light-emitting diode and the second end of the buzzer are jointly formed into a first contact signal input end of the first prompting module.
In one embodiment, the first indication module comprises a second light emitting diode and a sixth resistor;
the anode of the second light-emitting diode is the input end of a voltage-stabilized power supply of the first indicating module;
and the cathode of the second light-emitting diode is connected with the first end of the sixth resistor, and the second end of the sixth resistor is the second contact signal input end of the first indicating module.
A second aspect of the embodiments provides a loop state detector, loop state detector includes as above loop state detection device and box.
The embodiment of the utility model provides a through battery module storage electric energy and output power supply, voltage stabilizing module carries out the steady voltage to power supply so as to generate constant voltage power supply, at least one detection module detects the return circuit that awaits measuring so that the return circuit that awaits measuring generates the detected signal according to constant voltage power supply, and instruct or indicate according to the detected signal, wherein, detection module includes current limiting module, interface module, steady voltage amplification module, relay module, first instruction module and first suggestion module; the current limiting module is used for limiting the current of the voltage-stabilized power supply to generate a detection power supply; the interface module forwards the detection power supply to detect the loop to be detected so as to generate a detection signal and receive the detection signal; the voltage-stabilizing amplification module is used for stabilizing voltage and amplifying the detection signal to generate an amplified detection signal; the relay module generates a first contact signal or a second contact signal according to the amplified detection signal; the first indicating module indicates according to the second contact signal and the regulated power supply; the first prompting module is used for prompting and alarming according to the first contact signal and the stabilized voltage power supply, so that the detection device is convenient to carry and move in the loop state detection operation, the dependence of the detection device on an external power supply is reduced, the detection efficiency and the portability are improved, the time cost is reduced, the accuracy of the field detection operation is improved, and the potential electricity utilization potential safety hazard when the consumption of manpower and material resources and the field complex working condition are used for detecting workers is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a circuit state detection apparatus according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of a circuit state detection apparatus according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of a circuit state detection apparatus according to an embodiment of the present invention;
fig. 4 is another schematic structural diagram of a circuit state detection apparatus according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram illustrating an exemplary circuit of a loop status detecting device according to an embodiment of the present invention;
fig. 6 is an external schematic structural diagram of an example box of the loop status detector according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a schematic structural diagram of a circuit state detection device according to an embodiment of the present invention is shown, for convenience of description, only the relevant portions of the embodiment are shown, and detailed descriptions are as follows:
a loop state detection device comprises a battery module 11, a voltage stabilizing module 12 and at least one detection module 100.
The battery module 11 is used for storing electric energy and outputting a power supply; the voltage stabilizing module 12 is connected with the battery module 11 and is used for stabilizing the voltage of the power supply to generate a stabilized voltage power supply; the detection module 100 is connected with the voltage stabilizing module 12, and at least one of the detection modules is used for detecting the loop to be detected according to the voltage stabilizing power supply so as to enable the loop to be detected to generate a detection signal, and indicating or prompting according to the detection signal; the detection module 100 includes a current limiting module 101, a voltage stabilizing and amplifying module 102, a relay module 103, a first prompting module 104, a first indicating module 105, and an interface module 106. The current limiting module 101 is connected with the voltage stabilizing module 12 and the loop to be detected and is used for limiting the current of the voltage stabilizing power supply to generate a detection power supply; the interface module 106 is connected to the current limiting module 101, and is configured to forward the detection power to detect the loop to be detected to generate a detection signal, and receive the detection signal; the voltage stabilizing amplification module 102 is connected to the voltage stabilizing module 12 and the interface module 106, and is configured to stabilize and amplify the detection signal to generate an amplified detection signal; the relay module 103 is connected with the voltage-stabilizing amplification module 102 and is used for generating a first contact signal or a second contact signal according to the amplified detection signal; the first indicating module 105 is connected with the voltage stabilizing module 12 and the relay module 103 and is used for indicating according to the second contact signal and the voltage stabilizing power supply; the first prompting module 104 is connected with the voltage stabilizing module 12 and the relay module 103 and is used for prompting and alarming according to the first contact signal and the voltage stabilizing power supply.
In specific implementation, the relay module 103 obtains electricity according to the detection amplification signal to generate a first contact signal; the relay module 103 is not electrified and does not generate excitation, and correspondingly generates a second contact signal, and at the moment, the normally open and normally closed contact states of the relay are not changed. Optionally, the first prompting module 104 prompts that the loop to be detected is qualified, and the first indicating module 105 indicates that the loop to be detected is unqualified.
Referring to fig. 2, in one embodiment, the loop status detecting apparatus further includes a transforming module 14, a rectifying module 15 and a first filtering module 16.
The voltage transformation module 14 is used for performing voltage transformation on an external power supply to generate a first power supply; the rectifying module 15 is connected with the transforming module 14 and is used for rectifying the first power supply to generate a rectified power supply; the first filtering module 16 is connected to the rectifying module 15 and configured to filter and reduce noise of the rectified power to generate a charging power; the battery module 11 is specifically configured to charge and store electric energy according to a target rectified power supply and output a power supply.
In specific implementation, the external input power source may be a 220 ac power source, and the 220V ac power source is subjected to voltage reduction, rectification and filtering processing by the voltage transformation module 14, the rectification module 15 and the first filtering module 16 to obtain a low-voltage dc charging power source for charging the storage battery of the battery module 11.
Referring to fig. 3, in one embodiment, the loop status detecting device further includes a battery protection module 17 and a key module 18.
The battery protection module 17 is connected with the first filtering module 16 and the battery module 11, and is used for detecting the voltage of the battery module 11 to generate a voltage detection signal, performing overcharge protection and overdischarge protection on the battery module 11 according to the voltage detection signal, and connecting or disconnecting a power supply according to a key signal; the key module 18 is connected to the battery protection module 17 and is configured to generate a key signal according to a user input.
Referring to fig. 4, in one embodiment, the loop status detecting apparatus further includes a second filtering module 19.
The second filtering module 19 is connected with the voltage stabilizing module 12 and is used for filtering and denoising the stabilized voltage power supply to generate a target stabilized voltage power supply; the detection module 100 is specifically configured to detect a loop to be detected according to a target regulated power supply so that the loop to be detected generates a detection signal, and perform indication or prompt according to the detection signal.
Referring to fig. 5, in one embodiment, the current limiting module 101 includes a first resistor R1, a first diode D1, and a second resistor R2.
The first end of the first resistor R1 is connected with the positive electrode of the regulated power supply, the first end of the second resistor R2 is the detection signal output end of the current limiting module 101, and the second end of the second resistor R2 is connected with the negative electrode of the regulated power supply. In a specific implementation, the first end of the second resistor R2 is also the detection signal input end of the current limiting module 101.
The second end of the first resistor R1 is connected to the anode of the first diode D1, and the cathode of the first diode D1 is the output terminal of the detection power supply of the current limiting module 101.
Referring to fig. 5, in one embodiment, the regulator amplifying module 102 includes a third resistor R3, a fourth resistor R4, a first zener diode DW, and a first transistor Q1.
The cathode of the first voltage-stabilizing diode DW is the input end of the detection signal of the voltage-stabilizing amplification module 102.
The emitter of the first transistor Q1 is the amplified detection signal output of the regulated amplifier block 102.
The first terminal of the third resistor R3 is the regulated power input terminal of the regulated power amplification block 102.
The anode of the first voltage-stabilizing diode DW is connected with the first end of the fourth resistor R4, the second end of the fourth resistor R4 is connected with the base of the first triode Q1, and the collector of the first triode Q1 is connected with the second end of the third resistor R3.
Referring to fig. 5, in one embodiment, the relay module 103 includes a first relay K and a second diode D2.
The first end of the coil K0 of the first relay K is connected with the cathode of the second diode D2, and the second end of the coil K0 of the first relay K, the anode of the second diode D2, the second end of the normally open contact K1 of the first relay K and the second end of the normally closed contact K2 of the first relay K are connected with the cathode of the regulated power supply.
The first end of the coil K0 of the first relay K and the cathode of the second diode D2 together form an amplified detection signal input of the relay module 103.
A first end of a normally open contact K1 of the first relay K is a first contact signal output end of the relay module 103; the first end of the normally closed contact K2 of the first relay K is the second contact signal output end of the relay module 103.
In a specific implementation, the negative electrode of the regulated power supply can be equivalent to a power ground.
Referring to fig. 5, in one embodiment, the first prompt module 104 includes a first light emitting diode D3, a fifth resistor R5, and a buzzer H.
The first end of the fifth resistor R5 and the first end of the buzzer H are jointly configured as a regulated power supply input end of the first prompting module 104, the second end of the fifth resistor R5 is connected with the anode of the first light-emitting diode D3, and the cathode of the first light-emitting diode D3 is connected with the second end of the buzzer H.
The cathode of the first light emitting diode D3 and the second end of the buzzer H together constitute a first contact signal input of the first prompting module 104.
Referring to FIG. 5, in one embodiment, the first indicating module 105 includes a second LED D4 and a sixth resistor R6.
The anode of the second light emitting diode D4 is the regulated power input of the first indicator module 105.
The cathode of the second light emitting diode D4 is connected to the first end of the sixth resistor R6, and the second end of the sixth resistor R6 is the second contact signal input end of the first indicator module 105.
In a specific implementation, the regulated power supply is a regulated dc power supply. The second end of the sixth resistor R6 is connected with the first end of the normally closed contact K2 of the first relay K, and the cathode of the first light-emitting diode D3 and the second end of the buzzer H are connected with the first end of the normally open contact K1 of the first relay K. The on-key module 18 includes a push button switch K0 to enable power on and power off control. The third LED D5 is a power indicator and the fourth LED D8 is a battery power indicator. Pressing button switch K0, observing the state of battery power indicator D8, if not lighting, it means the accumulator is not fully charged, it needs to continue charging, if pressing it lights, it means the battery is fully charged, it can carry out loop test.
The operation of a loop detection device will be briefly described with reference to fig. 5:
when a plurality of loops are to be tested simultaneously, the loops RX to be tested are connected to A, B of the interface module 106, and then a plurality of groups of A, B ends are derived by copying a plurality of detection modules 100 and performing extended connection from a and b ends in fig. 5, so that a plurality of loop tests can be performed.
The circuit is initially tested to check that the circuit is properly connected, the start switch KO is pressed, and the battery charge indicator light (fourth light emitting diode D8) is observed to be lit to indicate that the battery is sufficiently charged. Because the initial access test loop defaults to the standard exceeding of the test direct resistance, the unqualified detection indicator lamp (the second light emitting diode D4) is turned on, at this time, the battery module 11 outputs the power supply to the voltage stabilizing module 12, the voltage stabilizing module 12 outputs a stabilized voltage power supply according to the power supply, the stabilized voltage power supply is subjected to filtering and noise reduction processing through the second filtering module 19 (the second capacitor C2) and then outputs the power supply to the end a (the positive electrode of the stabilized voltage power supply) and the end B (the negative electrode of the stabilized voltage power supply), the positive stabilized voltage power supply output by the end a is subjected to current limiting through the first resistor R1 and then is prevented from being reversely connected through the first diode D1, the detection power supply is output by the cathode of the first diode D1, the detection power supply is transmitted to the tested loop RX after passing through the end a of the interface module. If the resistance value of the tested loop is less than 5 omega, a detection signal enables the cathode voltage of the first voltage stabilizing diode DW to rise and conduct the first voltage stabilizing diode DW through soft breakdown, the detection signal is transmitted to the base electrode of the first triode Q1 through the fourth resistor R4, the first triode Q1 is in saturated conduction due to the rise of the base electrode voltage, one positive polarity voltage stabilizing power supply is transmitted to the collector electrode of the first triode Q1 through the fifth resistor R5 and is transmitted to the coil K0 of the first relay K through the emitter electrode of the first triode Q1, the coil K0 of the first relay K is electrified to generate a first contact signal through excitation, the first contact signal enables the normally open contact K1 of the first relay K to be switched on, the normally closed point K2 of the first relay K is switched off, so that one positive polarity power supply forms a conduction loop through the buzzer H and the normally open contact K1 of the first relay K, and the buzzer H sounds, the tested loop is prompted to be detected qualified, meanwhile, a positive power supply forms a conducting loop through a fifth resistor R5, a first light-emitting diode D3 and a normally open contact K1 of a first relay K, a qualified detection indicator lamp (a first light-emitting diode D3) is lightened, the tested loop is prompted to be detected qualified, a unqualified detection indicator lamp (a second light-emitting diode D4) is disconnected, and the power is not lightened; if the resistance value of the tested loop is less than 5 omega, the detection signal can not enable the voltage of the cathode of the first voltage-stabilizing diode DW to be increased to be enough to conduct the first voltage-stabilizing diode DW in a soft breakdown mode, the first triode Q1 is kept in an off state, the coil K0 of the first relay K is not electrified to generate excitation, a second contact signal is generated, which causes the normally open contact K1 of the first relay K to remain open, and the normally closed point K2 of the first relay K is kept closed, the detection qualified indicating lamp (the first light-emitting diode D3) is not lightened, the buzzer H is not powered and does not work, meanwhile, a conduction loop is formed by the positive line voltage-stabilized power supply through the second light-emitting diode D4, the sixth resistor R6 and the normally-closed point K2 of the first relay K, and the unqualified detection indicator lamp (the second light-emitting diode D4) is electrified and is lightened to indicate that the tested loop is unqualified.
A second aspect of the embodiments provides a loop state detector, include as above-mentioned loop state detection device and box. Referring to fig. 6, fig. 6 is an external structural diagram of a loop status detector, 1 is a box body of the loop status detector, the box body 1 is provided with a plurality of pairs of terminals, such as (a, B) and (a1, B1), the box body 1 is provided with a charging access socket jack F, and the power socket F is a standard ground socket with ground wire including a live wire L, a neutral wire N and a ground wire.
The embodiment of the utility model provides a can realize conveniently carrying and removing the detector in return circuit state test operation, reduce the detector to external power source's dependence, improve detection efficiency and portability, reduce the time cost, improve the accuracy of witnessed inspections operation, and reduce the consumption of manpower and materials and the latent power consumption potential safety hazard when the complicated operating mode in scene detects the staff.
Although certain embodiments have been described above with a certain degree of particularity, those skilled in the art could make numerous alterations to the disclosed embodiments without departing from the scope of this disclosure. Joinder references (e.g., attached, coupled, connected, and the like) are to be construed broadly and may include intermediate members between a connection of elements and relative movement between elements. Thus, connection references do not necessarily imply that two elements are directly connected/coupled and in a fixed relationship to each other. The use of "for example" throughout this specification should be interpreted broadly and used to provide non-limiting examples of embodiments of the disclosure, and the disclosure is not limited to such examples. It is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative only and not limiting. Changes in detail or structure may be made without departing from the disclosure.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A circuit state detection device, characterized by comprising:
the battery module is used for storing electric energy and outputting a power supply;
the voltage stabilizing module is connected with the battery module and used for stabilizing the voltage of the power supply to generate a stabilized voltage power supply;
the detection module is connected with the voltage stabilizing module and used for detecting a loop to be detected according to the voltage stabilizing power supply so as to enable the loop to be detected to generate a detection signal and indicating or prompting according to the detection signal; wherein the detection module comprises:
the current limiting module is connected with the voltage stabilizing module and the loop to be detected and used for limiting the current of the voltage stabilizing power supply to generate a detection power supply;
the interface module is connected with the current limiting module and used for forwarding the detection power supply to detect the loop to be detected so as to generate the detection signal and receiving the detection signal;
the voltage stabilizing and amplifying module is connected with the voltage stabilizing module and the interface module and is used for stabilizing voltage and amplifying the detection signal to generate an amplified detection signal;
the relay module is connected with the voltage stabilizing module and the voltage stabilizing amplifying module and used for generating a first contact signal or a second contact signal according to the amplified detection signal;
the first indicating module is connected with the voltage stabilizing module and the relay module and used for indicating according to the second contact signal and the voltage stabilizing power supply;
and the first prompting module is connected with the voltage stabilizing module and the relay module and used for prompting and alarming according to the first contact signal and the voltage stabilizing power supply.
2. The circuit state detection device according to claim 1, characterized in that the circuit state detection device further comprises:
a voltage transformation module for performing voltage transformation on an external power supply to generate a first power supply;
the rectification module is connected with the voltage transformation module and used for rectifying the first power supply to generate a rectified power supply;
the first filtering module is connected with the rectifying module and used for filtering and denoising the rectified power supply to generate a target rectified power supply;
the battery module is specifically used for charging and storing electric energy according to the target rectification power supply and outputting the power supply.
3. The circuit state detection device according to claim 2, characterized in that the circuit state detection device further comprises:
the battery protection module is connected with the first filtering module and the battery module, and is used for detecting the voltage of the battery module to generate a voltage detection signal, performing overcharge protection and overdischarge protection on the battery module according to the voltage detection signal, and connecting or disconnecting the power supply according to a key signal;
and the key module is connected with the battery protection module and used for generating the key signal according to the input of a user.
4. The circuit state detection device according to claim 1, characterized in that the circuit state detection device further comprises:
the second filtering module is connected with the voltage stabilizing module and used for filtering and denoising the stabilized voltage power supply to generate a target stabilized voltage power supply;
the detection module is specifically used for detecting a loop to be detected according to the target voltage-stabilized power supply so that the loop to be detected generates a detection signal, and indicating or prompting according to the detection signal.
5. The loop state detection device of claim 1, wherein the current limiting module comprises a first resistor, a first diode, and a second resistor;
the first end of the first resistor is connected with the positive electrode of the voltage-stabilized power supply, the first end of the second resistor is the detection signal output end of the current-limiting module, and the second end of the second resistor is connected with the negative electrode of the voltage-stabilized power supply;
the second end of the first resistor is connected with the anode of the first diode, and the cathode of the first diode is the output end of the detection power supply of the current limiting module.
6. The loop state detecting device according to claim 1, wherein the regulator amplifying block includes a third resistor, a fourth resistor, a first regulator diode, and a first triode;
the cathode of the first voltage-stabilizing diode is a detection signal input end of the voltage-stabilizing amplification module, the emitter of the first triode is an amplification detection signal output end of the voltage-stabilizing amplification module, and the first end of the third resistor is a voltage-stabilizing power input end of the voltage-stabilizing amplification module;
the positive pole of the first voltage-stabilizing diode is connected with the first end of the fourth resistor, the second end of the fourth resistor is connected with the base of the first triode, and the collector of the first triode is connected with the second end of the third resistor.
7. The circuit status detecting device according to claim 1, wherein the relay module includes a first relay and a second diode;
the first end of the coil of the first relay is connected with the cathode of the second diode, and the second end of the coil of the first relay, the anode of the second diode, the second end of the normally open contact of the first relay and the second end of the normally closed contact of the first relay are connected with the cathode of the regulated power supply;
a first end of a coil of the first relay and a cathode of the second diode are jointly formed into an amplified detection signal input end of the relay module;
the first end of the normally open contact of the first relay is a first contact signal output end of the relay module; and the first end of the normally closed contact of the first relay is a second contact signal output end of the relay module.
8. The loop state detecting device according to claim 1, wherein the first prompting module includes a first light emitting diode, a fifth resistor, and a buzzer;
a first end of the fifth resistor and a first end of the buzzer jointly form a stabilized voltage supply input end of the first prompting module, a second end of the fifth resistor is connected with an anode of the first light-emitting diode, and a cathode of the first light-emitting diode is connected with a second end of the buzzer;
the cathode of the first light-emitting diode and the second end of the buzzer are jointly formed into a first contact signal input end of the first prompting module.
9. The loop state detection device according to claim 1, wherein the first indication module includes a second light emitting diode and a sixth resistor;
the anode of the second light-emitting diode is the input end of a voltage-stabilized power supply of the first indicating module;
and the cathode of the second light-emitting diode is connected with the first end of the sixth resistor, and the second end of the sixth resistor is the second contact signal input end of the first indicating module.
10. A circuit state detector, characterized in that it comprises the circuit state detection device according to any one of claims 1 to 9 and a case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921110344.2U CN210348270U (en) | 2019-07-16 | 2019-07-16 | Loop state detection device and detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921110344.2U CN210348270U (en) | 2019-07-16 | 2019-07-16 | Loop state detection device and detector |
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| CN116520751B (en) * | 2023-05-12 | 2024-02-23 | 中核检修有限公司 | Intelligent unmanned patrol aircraft |
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