CN111948570A - Access control auxiliary input control system and line detection method - Google Patents
Access control auxiliary input control system and line detection method Download PDFInfo
- Publication number
- CN111948570A CN111948570A CN202010818194.1A CN202010818194A CN111948570A CN 111948570 A CN111948570 A CN 111948570A CN 202010818194 A CN202010818194 A CN 202010818194A CN 111948570 A CN111948570 A CN 111948570A
- Authority
- CN
- China
- Prior art keywords
- voltage
- signal
- voltage amplitude
- amplitude signal
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Automation & Control Theory (AREA)
- Alarm Systems (AREA)
Abstract
The application provides an entrance guard auxiliary input control system and a line detection method. This application is based on modified entrance guard's auxiliary input control system structure, circuit voltage variation's characteristic can arouse according to the circuit break-make change between entrance guard's controller and the sensor, voltage amplitude signal and the comparison of reference voltage amplitude signal that produces after being connected through acquireing the sensor and entrance guard's controller, obtain the status signal of system, so that distinguish unusual signal and normal signal according to status signal's difference, the technical problem that the false action rate that has solved current entrance guard's auxiliary input control system existence is high and maintenance efficiency is low, the probability that the lock normally opened has been improved, maintenance personal's work efficiency has been improved simultaneously.
Description
Technical Field
The application relates to the technical field of entrance guard, in particular to an entrance guard auxiliary input control system and a line detection method.
Background
The auxiliary input of the existing access controller refers to relay signals of relays of various sensors such as a controller connected to smoke, humidity and radar, normally, the relays output by the sensors are in a normally closed state (COM ports and NC (normal close) ports are in short circuit), when fire alarm occurs, the smoke senses that smoke exceeds the standard or a fire key is pressed to cause fire alarm, and the sensors are switched to a normally open state (COM and NO (normal open) in short circuit), so that the locking state of a door is released, and people can conveniently escape.
The structure of the conventional entrance guard auxiliary input control system is shown in fig. 1, the fire output (NO, COM) of a sensor is connected to the fire input (two wiring terminals) of an entrance guard controller through two lines, and the signal output by the sensor is generally only in two states of fire output closed (NO, COM short circuit) and fire output open (NOCOM open), so that the entrance guard controller can judge whether to open the door according to the signal output by the sensor. However, the existing entrance guard auxiliary input control system has the technical problems of high misoperation rate and low maintenance efficiency.
Disclosure of Invention
The application provides an entrance guard auxiliary input control system and a line detection method, which are used for solving the technical problems of high false action rate and low maintenance efficiency of the existing entrance guard auxiliary input control system.
First, a first aspect of the present application provides an access control auxiliary input control system, including: the system comprises a sensor, an access controller, a first resistor, a second resistor, a third resistor and a fourth resistor;
the entrance guard control device specifically includes: the voltage amplitude signal processing module comprises a first connecting terminal, a second connecting terminal and a voltage amplitude signal processing module;
the first wiring terminal is electrically connected with the NO terminal of the sensor;
the NO terminal is electrically connected with a COM terminal of the sensor through the first resistor;
the second connection terminal is electrically connected with a COM terminal of the sensor through the second resistor, wherein the first resistor is connected with the second resistor in series;
the third resistor and the fourth resistor are arranged in the controller, wherein the third resistor is electrically connected with a power supply end, and the fourth resistor is electrically connected with a ground end;
the input end of the voltage amplitude signal processing unit is electrically connected with the second wiring terminal and used for outputting a corresponding state signal according to a comparison result of the received voltage amplitude signal and a preset reference voltage amplitude signal.
Optionally, the status signal is specifically: a normally open signal, a normally closed signal, a line short circuit signal, or a line open signal.
Optionally, the voltage amplitude signal processing module specifically includes: a voltage comparison submodule;
the voltage comparison submodule specifically comprises: the circuit comprises a first voltage comparator, a second voltage comparator and a first gate circuit;
the second connection terminal is respectively connected with the positive input end of the first voltage comparator and the negative input end of the second voltage comparator, wherein the negative input end of the first voltage comparator and the positive input end of the second voltage comparator are used for accessing a preset reference voltage amplitude signal;
the output end of the first voltage comparator and the output end of the second voltage comparator are both connected with the input end of the first gate circuit;
the first gate circuit is used for comparing the voltage amplitude signals output by the first voltage comparator and the second voltage comparator so as to output corresponding state signals according to the comparison result.
Optionally, the voltage amplitude signal processing module specifically includes: a sampling comparison submodule;
and an ADC interface of the sampling comparison sub-module is connected with the second wiring terminal and used for sampling the received voltage amplitude signal in an ADC voltage sampling mode to obtain a sampling signal, and comparing the sampling signal with a preset reference voltage amplitude signal to output a corresponding state signal according to a comparison result.
Optionally, the voltage amplitude signal processing module specifically includes: the voltage comparison submodule, the sampling comparison submodule and the second gate circuit;
the voltage comparison submodule specifically comprises: the circuit comprises a first voltage comparator, a second voltage comparator and a first gate circuit;
the second connection terminal is respectively connected with the positive input end of the first voltage comparator and the negative input end of the second voltage comparator, wherein the negative input end of the first voltage comparator and the positive input end of the second voltage comparator are used for accessing a preset reference voltage amplitude signal;
the output end of the first voltage comparator and the output end of the second voltage comparator are both connected with the input end of the first gate circuit;
the first gate circuit is used for comparing the voltage amplitude signals output by the first voltage comparator and the second voltage comparator so as to output corresponding state signals according to the comparison result;
the ADC interface of the sampling comparison sub-module is connected with the second connecting terminal and used for sampling the received voltage amplitude signal in an ADC voltage sampling mode to obtain a sampling signal, and comparing the sampling signal with a preset reference voltage amplitude signal to output a corresponding state signal according to a comparison result;
and the second gate circuit is used for outputting a normally open signal when the state signal output by at least one of the voltage comparison submodule and the sampling comparison submodule is a normally open signal.
Optionally, the method further comprises: a first communication module and a second communication module;
the first communication module is arranged on the sensor, and the second communication module is arranged on the access controller;
and the first communication end of the second communication module is connected with the sampling comparison sub-module, and the second communication end is connected with the first communication module and used for feeding back the state signal to the sensor in a remote communication mode.
Optionally, a control end of an entrance guard relay controller in the entrance guard controller is connected with an output end of the voltage amplitude signal processing unit, and is used for controlling the opening or locking of an entrance guard according to the received state signal.
Optionally, the first gate circuit is specifically an and gate circuit, and the second gate circuit is specifically an or gate circuit.
Optionally, the first communication module and the second communication module are both ethernet communication modules.
Secondly, this application second aspect provides a line detection method of entrance guard's auxiliary input control system, is applied to the entrance guard's auxiliary input control system like this application first aspect, includes:
the voltage amplitude signal processing unit receives a voltage amplitude signal of the sensor;
the voltage amplitude signal processing unit compares the received voltage amplitude signal with a preset reference voltage amplitude signal to obtain a comparison result;
and the voltage amplitude signal processing unit outputs a corresponding state signal according to the comparison result so as to determine a line detection result of the entrance guard auxiliary input control system according to a corresponding relation between a preset state signal and a line detection result.
According to the technical scheme, the embodiment of the application has the following advantages:
the application provides an entrance guard's auxiliary input control system includes: the system comprises a sensor, an access controller, a first resistor, a second resistor, a third resistor and a fourth resistor; the entrance guard control device specifically includes: the voltage amplitude signal processing module comprises a first connecting terminal, a second connecting terminal and a voltage amplitude signal processing module; the first wiring terminal is electrically connected with the NO terminal of the sensor; the NO terminal is electrically connected with a COM terminal of the sensor through the first resistor; the second connection terminal is electrically connected with a COM terminal of the sensor through the second resistor, wherein the first resistor is connected with the second resistor in series; the third resistor and the fourth resistor are arranged in the controller, wherein the third resistor is electrically connected with a power supply end, and the fourth resistor is electrically connected with a ground end; the input end of the voltage amplitude signal processing unit is electrically connected with the second wiring terminal and used for outputting a corresponding state signal according to a comparison result of the received voltage amplitude signal and a preset reference voltage amplitude signal.
This application is based on modified entrance guard's auxiliary input control system structure, circuit voltage variation's characteristic can arouse according to the circuit break-make change between entrance guard's controller and the sensor, voltage amplitude signal and the comparison of reference voltage amplitude signal that produces after being connected through acquireing the sensor and entrance guard's controller, obtain the status signal of system, so that distinguish unusual signal and normal signal according to status signal's difference, the technical problem that the false action rate that has solved current entrance guard's auxiliary input control system existence is high and maintenance efficiency is low, the probability that the lock normally opened has been improved, maintenance personal's work efficiency has been improved simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a conventional entrance guard auxiliary input control system;
fig. 2 is a schematic structural diagram of an embodiment of an access control auxiliary input control system provided in the present application;
fig. 3 is a schematic diagram of a complete circuit structure of an access control auxiliary input control system provided in the present application;
fig. 4 is an equivalent circuit schematic diagram of an access control auxiliary input control system provided in the present application when a line is disconnected;
fig. 5 is a schematic diagram of an equivalent circuit when a line short circuit occurs in an access control auxiliary input control system provided by the present application;
fig. 6 is a schematic diagram of an equivalent circuit when the fire protection output of the sensor of the access control auxiliary input control system is normally open, according to the present invention;
fig. 7 is a schematic diagram of an equivalent circuit when a fire output of a sensor of an access control auxiliary input control system provided by the present application is normally closed;
fig. 8 is an enlarged schematic diagram of a specific circuit structure of a voltage comparison submodule in an access control auxiliary input control system provided in the present application;
fig. 9 is a schematic flowchart of a line detection method of an access control auxiliary input control system according to a first embodiment of the present disclosure.
Detailed Description
Based on the structure of the existing entrance guard auxiliary input control system shown in fig. 1, the entrance guard controller can judge whether to open the door according to the signal output by the sensor, so that the entrance guard controller is linked with the entrance guard system for fire protection. In practice, however, the skilled person will find that in some scenarios the individual line states between the sensor and the access controller can also generate the same signal as in the case of an alarm, for example:
1. because the wiring between various sensors and the controller is probably very long, and a lot of are walked the line from the wall body, if the disconnected condition such as the wire rod is bitten off by the mouse appears, the signal that produces is the same with normally open state, if the conflagration takes place this moment, the fire control alarm output signal that the cigarette felt just can't transmit access control ware, and the lock also can't be opened, and the fire control regulation of many countries mandates the lock must be opened under the conflagration condition. Maintenance personnel only know that the fire alarm condition is triggered but do not open the door, but cannot know that the line is broken, and finally waste much time on troubleshooting other problems, so that the efficiency is low.
2. The condition of wire rod short circuit or entrance guard's fire control terminal short circuit appears, and the signal that produces is the same with the normal close state, causes the condition that can artificially open the lock, and there is the hidden danger safely.
3. Under the conditions of fire and high environmental temperature, the condition that the door cannot be opened normally can occur in some door access controllers adopting single-chip microcomputers.
Because the structure of present entrance guard fire control coordinated control system is too simple, can't distinguish these abnormal signal and normal signal to operating temperature is narrower, has leaded to current entrance guard fire control coordinated control system to have the malfunction rate height, and the technical problem that maintenance efficiency is low.
In view of this, the embodiment of the present application provides an entrance guard auxiliary input control system and a line detection method, which are used to solve the technical problems of high false operation rate and low maintenance efficiency due to an excessively simple structure of the existing entrance guard auxiliary input control system.
In order to make the objects, features and advantages of the present invention more apparent and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the embodiments described below are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 2, a first embodiment of the present application provides an access control auxiliary input control system, including: the sensor and door controller comprises a sensor and door controller, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4;
the access control controller specifically includes: the device comprises a first wiring terminal BUT1, a second wiring terminal BUT2 and a voltage amplitude signal processing module;
the first wiring terminal BUT1 is electrically connected with the NO terminal of the sensor;
the NO terminal is electrically connected with the COM terminal of the sensor through a first resistor R1;
the second connection terminal BUT2 is electrically connected with the COM terminal of the sensor through a second resistor R2, wherein the first resistor R1 is connected with the second resistor R2 in series;
a third resistor R3 and a fourth resistor R4 are arranged in the controller, wherein the third resistor R3 is electrically connected with a power supply end, and the fourth resistor R4 is electrically connected with a ground end;
the input end of the voltage amplitude signal processing unit U is electrically connected with the second wiring terminal BUT2, and is used for receiving the voltage amplitude signal after the voltage division of R1-R4, comparing the voltage amplitude signal with a preset reference voltage amplitude signal, and finally outputting a corresponding state signal.
Based on the circuit schematic diagrams of fig. 2 and fig. 4 to fig. 7, the equivalent circuit structure between the sensor and the door access controller can also be changed under different circuit states, based on the characteristic, the present application makes use of the characteristic of resistance voltage division by connecting a resistor in series between the sensor and the door access controller, so that when the system is in different states, corresponding voltage amplitude signals can be generated, then the voltage amplitude signals are collected by the voltage amplitude signal processing unit U and compared with the preset reference voltage amplitude signals, and thus, according to the obtained state signals, the corresponding system actual states, such as the normal open/close state of the circuit, the abnormal short circuit/open circuit state of the circuit, etc., are determined.
The embodiment of the application is based on the auxiliary input control system structure of modified entrance guard, can arouse the characteristic that circuit voltage changes according to the circuit break-make change between entrance guard's controller and the sensor, voltage amplitude signal and reference voltage amplitude signal that produce after connecting through acquireing the sensor and entrance guard's controller are compared, obtain the status signal of system, so that distinguish abnormal signal and normal signal according to status signal's difference, the technical problem that the false action rate that has solved the auxiliary input control system of current entrance guard exists is high and maintenance efficiency is low, the probability that the lock normally opened has been improved, maintenance personal's work efficiency has been improved simultaneously.
The above is a detailed description of a first embodiment of an access control auxiliary input control system provided in the present application, and the following is a detailed description of a second embodiment of an access control auxiliary input control system provided in the present application.
Referring to fig. 3, a second embodiment of the present application provides an access control auxiliary input control system based on the first embodiment, including:
more specifically, the voltage amplitude signal processing module mentioned in the first embodiment can be specifically subdivided into the following three implementation manners in this embodiment:
1) the first embodiment of the voltage amplitude signal processing module is a hardware-based circuit comparison method, and specifically includes two other voltage comparators as follows:
the voltage amplitude signal processing module U specifically includes: a voltage comparison submodule U1;
the voltage comparison submodule U1 specifically includes: a first voltage comparator U1A, a second voltage comparator U1B, and a first gate U2;
the second connection terminal BUT2 is respectively connected to the positive input terminal of the first voltage comparator U1A and the negative input terminal of the second voltage comparator U1B, wherein the negative input terminal of the first voltage comparator U1A and the positive input terminal of the second voltage comparator U1B are used for accessing a preset reference voltage amplitude signal;
the output end of the first voltage comparator U1A and the output end of the second voltage comparator U1B are both connected with the input end of a first gate circuit U2;
the first gate circuit U2 is used for comparing the voltage amplitude signals output by the first voltage comparator U1A and the second voltage comparator U1B, so as to output corresponding state signals according to the comparison result.
It should be noted that, in the present embodiment, the voltage amplitude signal received through the second connection terminal BUT2 is introduced into the positive input terminal of the first voltage comparator U1A and the negative input terminal of the second voltage comparator U1B, and the other two ports are connected to the reference voltage amplitude signal, so as to compare the voltage amplitude signal, so as to output a corresponding status signal according to the comparison result.
More specifically, when the fire-fighting output of the sensor is normally closed, the theoretical voltage division value is 1.713V, the range of the hardware voltage comparison circuit is properly expanded to be 1.59-1.9V, and when the condition is met, a high level is output to an OR gate and corresponds to a door opening signal.
As shown in fig. 3, the LM339 is used as the comparator, the offset voltage is small, the precision is high, and only 2 of the 4 comparators of the LM339 are needed, namely the first voltage comparator U1A and the second voltage comparator U1B. The working principle of the comparator is that the anode is larger than the cathode, and a high level is output; the positive electrode is smaller than the negative electrode, and the low level is output.
Firstly, 5V is pressed out of 1.9V and 1.59V through R9, R10 and R11, and the calculation process is 5V ÷ (R9+ R10+ R11) × R11 ÷ 5V ÷ (4.3+0.43+2.2) × 2.2 ÷ 1.59V; 5V/R9 + R10+ R11 (R10+ R11) 5V/4.3 +0.43+2.2 (0.43+2.2) 1.9V, wherein 1.9V is connected with the positive input end of U1A, and 1.59V is connected with the negative input end of U1B.
U2 is an and gate, and if and only if U1A and U1B output high at the same time, the Y pin of U2 outputs high. Otherwise U2 outputs a low level.
When the voltage after the voltage division of the resistor is less than 1.59V, U1A outputs high level, U1B outputs low level, U2 outputs low level with the subsequent Y pin, and the low level corresponds to the closing of the door. When the voltage falls between 1.59V and 1.9V, U1A outputs high level, U1B outputs high level, U2 takes and then Y pin outputs high level, and the high level corresponds to opening the door. When the voltage is greater than 1.9V, the U1A outputs low level, the U1B outputs high level, the U2 outputs low level with the Y pin later, and the low level corresponds to closing the door.
Therefore, U2 will output a high level corresponding to the gate-on signal if and only if the divided voltage falls between 1.59V and 1.9V.
2) The second implementation manner of the voltage amplitude signal processing module U is a voltage sampling software sampling manner, which specifically includes the following steps:
the voltage amplitude signal processing module specifically comprises: a sample comparison submodule U4;
an ADC interface of the sampling comparison sub-module U4 is connected with the second connection terminal BUT2, and is used for sampling the received voltage amplitude signal in an ADC voltage sampling mode to obtain a sampling signal, and comparing the sampling signal with a preset reference voltage amplitude signal to output a corresponding state signal according to a comparison result.
It should be noted that in this embodiment, the sampling comparison sub-module U4 of this embodiment is formed by a single chip microcomputer loaded with voltage amplitude signal sampling software, samples the received voltage amplitude signal to obtain a sampling signal, and compares the sampling signal with a preset reference voltage amplitude signal to output a corresponding state signal according to a comparison result.
More specifically, according to the circuit structures and device parameters shown in fig. 4 to 7, it can be known that:
as shown in fig. 4, when a lead disconnection occurs: if one of the two connections is interrupted, the sampled voltage is: 0V.
As shown in fig. 5, when a short circuit of the lead occurs: the two connections are short-circuited, and the sampled voltage is: 5 ÷ (1.82+3.4) × 3.4 ÷ 3.256V.
As shown in fig. 6, when the fire fighting output is a normally open signal, the sampled voltage is: 5 ÷ (1.82+3.4+4.7+4.7) × 3.4 ÷ 1.162V.
As shown in fig. 7, when the fire-fighting output is a normally-closed signal, the sampled voltage is: 5 ÷ (1.82+3.4+4.7) × 3.4 ÷ 1.713V.
3) The third embodiment of the voltage amplitude signal processing module U is an embodiment in which a circuit comparison mode and a voltage sampling software sampling mode are used together, and specifically, the following is implemented:
the voltage amplitude signal processing module U specifically includes: a voltage comparison submodule U1, a sampling comparison submodule U4 and a second gate circuit U3;
the voltage comparison submodule U1 specifically includes: a first voltage comparator U1A, a second voltage comparator U1B, and a first gate U2;
the second connection terminal BUT2 is respectively connected to the positive input terminal of the first voltage comparator U1A and the negative input terminal of the second voltage comparator U1B, wherein the negative input terminal of the first voltage comparator U1A and the positive input terminal of the second voltage comparator U1B are used for accessing a preset reference voltage amplitude signal;
the output end of the first voltage comparator U1A and the output end of the second voltage comparator U1B are both connected with the input end of a first gate circuit U2;
the first gate circuit U2 is used for comparing the voltage amplitude signals output by the first voltage comparator U1A and the second voltage comparator U1B so as to output corresponding state signals according to the comparison result;
an ADC interface of the sampling comparison sub-module U4 is connected with the second connection terminal BUT2, and is used for sampling the received voltage amplitude signal in an ADC voltage sampling mode to obtain a sampling signal, and comparing the sampling signal with a preset reference voltage amplitude signal to output a corresponding state signal according to a comparison result;
the second gate circuit U3 is used for outputting a normally open signal when the status signal output by at least one of the voltage comparison submodule U1 and the sampling comparison submodule U4 is a normally open signal.
It should be noted that, when a circuit comparison method and a voltage sampling software sampling method are used together, in order to ensure that a user can escape smoothly when an emergency occurs, the present embodiment performs gate circuit operation on two state signals obtained by the two methods based on the state signals obtained by the two methods by using the second gate circuit U3, and finally outputs a normally open signal when at least one of the output state signals is a normally open signal.
Preferably, the U2 of the embodiment adopts an industrial-grade gate LM339, and the working temperature can reach-40 to 125; the U3 adopts an industrial grade gate circuit 74AHC1G32, and the working temperature can reach-40 to 125; the controller can still open the door in a circuit comparison mode even if the single chip microcomputer U4 is abnormal under the high-temperature condition.
According to the conventional industry, the normally open signal of the door control is generally a high level signal, so the first gate circuit U2 is preferably an and gate circuit, the second gate circuit U3 is preferably an or gate circuit, and of course, if the normally open signal is a low level signal, the and gate circuit can be selected as the second gate circuit U3.
Further, the entrance guard auxiliary input control system of this embodiment further includes: a first communication module RJ45_1 and a second communication module RJ45_ 2;
the first communication module RJ45_1 is arranged on the sensor, and the second communication module RJ45_2 is arranged on the access controller;
the first communication end of the second communication module RJ45_2 is connected with the sampling comparison submodule U4, and the second communication end is connected with the first communication module RJ45_1 and used for feeding back the state signal to the sensor through a remote communication mode, so that a user can acquire the state signal to master the state of the entrance guard auxiliary input control system, and the problem of a circuit can be processed as early as possible after the problem is found.
The first communication module RJ45_1 and the second communication module RJ45_2 are ethernet communication modules.
And furthermore, an entrance guard relay controller K is arranged in the entrance guard controller, and the control end of the entrance guard relay controller K is connected with the output end of the voltage amplitude signal processing unit U and used for controlling the opening or locking of the entrance guard according to the received state signal.
Based on an improved entrance guard auxiliary input control system structure, according to the characteristic that circuit voltage change can be caused by on-off change of a circuit between an entrance guard controller and a sensor, a state signal of the system is obtained by comparing a voltage amplitude signal generated after the sensor is connected with the entrance guard controller with a reference voltage amplitude signal, so that an abnormal signal and a normal signal can be distinguished conveniently according to different state signals, the conventional method that two wires are directly connected is overcome, under the condition that the circuit is open-circuited, a fire disaster occurs, the fire output is normally closed, but the controller cannot receive the signal, and the controller cannot open the door to influence escape; the door can be opened through a terminal or a wire rod of the artificial short-circuit auxiliary input, unsafe factors such as the possibility of taking advantage of the door are left for lawbreakers, and the technical problems of high misoperation rate and low maintenance efficiency of the conventional entrance guard auxiliary input control system are solved.
The above is a detailed description of the second embodiment of the access control auxiliary input control system provided in the present application, and the following is a detailed description of the first embodiment of the line detection method of the access control auxiliary input control system provided in the present application.
Referring to fig. 9, a third embodiment of the present application provides a line detection method for an entrance guard auxiliary input control system, which is applied to the entrance guard auxiliary input control system according to the first embodiment or the second embodiment of the present application, and includes:
101, a voltage amplitude signal processing unit receives a voltage amplitude signal of a sensor;
102, comparing the received voltage amplitude signal with a preset reference voltage amplitude signal by a voltage amplitude signal processing unit to obtain a comparison result;
and 103, outputting a corresponding state signal by the voltage amplitude signal processing unit according to the comparison result so as to determine a line detection result of the entrance guard auxiliary input control system according to the corresponding relation between the preset state signal and the line detection result.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The terms "first," "second," "third," "fourth," and the like in the description of the application and the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. An access control auxiliary input control system, comprising: the system comprises a sensor, an access controller, a first resistor, a second resistor, a third resistor and a fourth resistor;
the entrance guard control device specifically includes: the voltage amplitude signal processing module comprises a first connecting terminal, a second connecting terminal and a voltage amplitude signal processing module;
the first wiring terminal is electrically connected with the NO terminal of the sensor;
the NO terminal is electrically connected with a COM terminal of the sensor through the first resistor;
the second connection terminal is electrically connected with a COM terminal of the sensor through the second resistor, wherein the first resistor is connected with the second resistor in series;
the third resistor and the fourth resistor are arranged in the controller, wherein the third resistor is electrically connected with a power supply end, and the fourth resistor is electrically connected with a ground end;
the input end of the voltage amplitude signal processing unit is electrically connected with the second wiring terminal and used for outputting a corresponding state signal according to a comparison result of the received voltage amplitude signal and a preset reference voltage amplitude signal.
2. The access control auxiliary input control system according to claim 1, wherein the status signal is specifically: a normally open signal, a normally closed signal, a line short circuit signal, or a line open signal.
3. The access control auxiliary input control system according to claim 1, wherein the voltage amplitude signal processing module specifically comprises: a voltage comparison submodule;
the voltage comparison submodule specifically comprises: the circuit comprises a first voltage comparator, a second voltage comparator and a first gate circuit;
the second connection terminal is respectively connected with the positive input end of the first voltage comparator and the negative input end of the second voltage comparator, wherein the negative input end of the first voltage comparator and the positive input end of the second voltage comparator are used for accessing a preset reference voltage amplitude signal;
the output end of the first voltage comparator and the output end of the second voltage comparator are both connected with the input end of the first gate circuit;
the first gate circuit is used for comparing the voltage amplitude signals output by the first voltage comparator and the second voltage comparator so as to output corresponding state signals according to the comparison result.
4. The access control auxiliary input control system according to claim 1, wherein the voltage amplitude signal processing module specifically comprises: a sampling comparison submodule;
and an ADC interface of the sampling comparison sub-module is connected with the second wiring terminal and used for sampling the received voltage amplitude signal in an ADC voltage sampling mode to obtain a sampling signal, and comparing the sampling signal with a preset reference voltage amplitude signal to output a corresponding state signal according to a comparison result.
5. The access control auxiliary input control system according to claim 2, wherein the voltage amplitude signal processing module specifically comprises: the voltage comparison submodule, the sampling comparison submodule and the second gate circuit;
the voltage comparison submodule specifically comprises: the circuit comprises a first voltage comparator, a second voltage comparator and a first gate circuit;
the second connection terminal is respectively connected with the positive input end of the first voltage comparator and the negative input end of the second voltage comparator, wherein the negative input end of the first voltage comparator and the positive input end of the second voltage comparator are used for accessing a preset reference voltage amplitude signal;
the output end of the first voltage comparator and the output end of the second voltage comparator are both connected with the input end of the first gate circuit;
the first gate circuit is used for comparing the voltage amplitude signals output by the first voltage comparator and the second voltage comparator so as to output corresponding state signals according to the comparison result;
the ADC interface of the sampling comparison sub-module is connected with the second connecting terminal and used for sampling the received voltage amplitude signal in an ADC voltage sampling mode to obtain a sampling signal, and comparing the sampling signal with a preset reference voltage amplitude signal to output a corresponding state signal according to a comparison result;
and the second gate circuit is used for outputting a normally open signal when the state signal output by at least one of the voltage comparison submodule and the sampling comparison submodule is a normally open signal.
6. The access control auxiliary input control system of claim 4, further comprising: a first communication module and a second communication module;
the first communication module is arranged on the sensor, and the second communication module is arranged on the access controller;
and the first communication end of the second communication module is connected with the sampling comparison sub-module, and the second communication end is connected with the first communication module and used for feeding back the state signal to the sensor in a remote communication mode.
7. The door control auxiliary input control system according to claim 1, wherein a control terminal of a door control relay controller in the door control controller is connected to the output terminal of the voltage amplitude signal processing unit, and is configured to control opening or locking of a door control according to the received state signal.
8. The entry control system according to claim 5, wherein the first gate circuit is an and gate circuit, and the second gate circuit is an or gate circuit.
9. The access control auxiliary input control system of claim 6, wherein the first communication module and the second communication module are both Ethernet communication modules.
10. A line detection method of an entrance guard auxiliary input control system, applied to the entrance guard auxiliary input control system according to any one of claims 1 to 9, comprising:
the voltage amplitude signal processing unit receives a voltage amplitude signal of the sensor;
the voltage amplitude signal processing unit compares the received voltage amplitude signal with a preset reference voltage amplitude signal to obtain a comparison result;
and the voltage amplitude signal processing unit outputs a corresponding state signal according to the comparison result so as to determine a line detection result of the entrance guard auxiliary input control system according to a corresponding relation between a preset state signal and a line detection result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010818194.1A CN111948570B (en) | 2020-08-14 | 2020-08-14 | Access control auxiliary input control system and line detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010818194.1A CN111948570B (en) | 2020-08-14 | 2020-08-14 | Access control auxiliary input control system and line detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111948570A true CN111948570A (en) | 2020-11-17 |
| CN111948570B CN111948570B (en) | 2023-06-02 |
Family
ID=73342332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010818194.1A Active CN111948570B (en) | 2020-08-14 | 2020-08-14 | Access control auxiliary input control system and line detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111948570B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388660A (en) * | 2007-09-12 | 2009-03-18 | 敬德元 | Integrated circuit for controlling time-delay by time-delay module |
| CN204575759U (en) * | 2015-01-05 | 2015-08-19 | 深圳远征技术有限公司 | A kind of lightning current HF reject device with data upload function |
| CN205809958U (en) * | 2016-07-15 | 2016-12-14 | 西华大学 | Multifunctional door prohibition system controller |
| EP3483616A1 (en) * | 2016-08-09 | 2019-05-15 | Huawei Technologies Co., Ltd. | Detection circuit and detection method |
| CN208969743U (en) * | 2018-08-13 | 2019-06-11 | 中国石油天然气股份有限公司 | A kind of access control system |
| CN110071574A (en) * | 2019-05-10 | 2019-07-30 | 成都信息工程大学 | Electronic access control system based on uninterruptible power supply |
| CN111478595A (en) * | 2020-04-03 | 2020-07-31 | 秦皇岛泰和安科技有限公司 | Terminal device and fire-fighting equipment control device |
-
2020
- 2020-08-14 CN CN202010818194.1A patent/CN111948570B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388660A (en) * | 2007-09-12 | 2009-03-18 | 敬德元 | Integrated circuit for controlling time-delay by time-delay module |
| CN204575759U (en) * | 2015-01-05 | 2015-08-19 | 深圳远征技术有限公司 | A kind of lightning current HF reject device with data upload function |
| CN205809958U (en) * | 2016-07-15 | 2016-12-14 | 西华大学 | Multifunctional door prohibition system controller |
| EP3483616A1 (en) * | 2016-08-09 | 2019-05-15 | Huawei Technologies Co., Ltd. | Detection circuit and detection method |
| CN208969743U (en) * | 2018-08-13 | 2019-06-11 | 中国石油天然气股份有限公司 | A kind of access control system |
| CN110071574A (en) * | 2019-05-10 | 2019-07-30 | 成都信息工程大学 | Electronic access control system based on uninterruptible power supply |
| CN111478595A (en) * | 2020-04-03 | 2020-07-31 | 秦皇岛泰和安科技有限公司 | Terminal device and fire-fighting equipment control device |
Non-Patent Citations (1)
| Title |
|---|
| 张陶: "一种基于微分法的峰值检测电路", 《微电子学》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111948570B (en) | 2023-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203299604U (en) | Home safety intelligent monitoring system based on property management | |
| CN203441259U (en) | Intelligent safety cabinet | |
| CN212304872U (en) | Intelligent power distribution monitoring and operation and maintenance system | |
| CN104850047A (en) | Safety monitoring system for electric power equipment | |
| CN110556923A (en) | Distribution transformer data monitoring terminal, monitoring system and monitoring method | |
| CN105931419A (en) | Intelligent safety protection system for dwelling house | |
| CN105375627A (en) | Distribution substation running state monitoring and security pre-warning apparatus | |
| CN110989428A (en) | Intelligent monitoring platform and method for power distribution room | |
| CN111948570A (en) | Access control auxiliary input control system and line detection method | |
| CN207489207U (en) | A kind of fire-fighting host system with long-distance intelligent control | |
| CN204407714U (en) | A kind of switch cubicle with monitoring function | |
| CN112678640A (en) | Detection system for remotely monitoring elevator presence and people trapping monitoring system | |
| CN210271162U (en) | Multi-parameter fire alarm system formed by network of gateways | |
| CN107140496A (en) | Vertical lift pit overhaul resetting means | |
| CN218825623U (en) | Intelligent thing interlocking | |
| CN215364351U (en) | Detection system for remotely monitoring elevator presence and monitoring system for people trapping | |
| CN104865918A (en) | GIS-based power monitoring system | |
| CN205427553U (en) | Fire control device power monitored control system | |
| CN110854827B (en) | Protection system of direct current residual current circuit breaker | |
| CN209913250U (en) | Intelligent distribution box capable of automatically detecting and protecting | |
| CN207312853U (en) | Vertical lift pit overhaul resetting apparatus | |
| CN208938315U (en) | A kind of delay confirmation intelligent alarm | |
| CN107910953B (en) | Device and method for intelligently monitoring power distribution equipment | |
| RU103029U1 (en) | SECURITY COMPLEX | |
| CN214954653U (en) | Real-time monitoring and alarming system for comprehensive environment state of telecommunication room |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |