CN111354111A - Infrared access control judgment method and infrared access control equipment - Google Patents
Infrared access control judgment method and infrared access control equipment Download PDFInfo
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- CN111354111A CN111354111A CN201811561727.1A CN201811561727A CN111354111A CN 111354111 A CN111354111 A CN 111354111A CN 201811561727 A CN201811561727 A CN 201811561727A CN 111354111 A CN111354111 A CN 111354111A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
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- 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
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- 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
- G07C9/10—Movable barriers with registering means
- G07C9/15—Movable barriers with registering means with arrangements to prevent the passage of more than one individual at a time
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- 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
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/27—Individual registration on entry or exit involving the use of a pass with central registration
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- 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
- G07C9/30—Individual registration on entry or exit not involving the use of a pass
- G07C9/38—Individual registration on entry or exit not involving the use of a pass with central registration
Abstract
The invention provides an infrared entrance guard judging method, which is applied to infrared entrance guard equipment, wherein the infrared entrance guard equipment comprises M infrared transmitting units and M infrared receiving units, wherein the M infrared transmitting units and the M infrared receiving units are correspondingly arranged, and when the jth infrared receiving unit of the M infrared receiving units does not receive a signal sent by the corresponding infrared transmitting unit, a jth infrared trigger signal is sent; the method comprises the following steps: initializing a system, judging whether a 1 st signal is received or not, if so, judging the type of the 1 st signal, and if the signal is a 1 st infrared trigger signal, assigning i to 2, and assigning j to 2; judging whether an ith signal is received within a first preset time, if so, judging the type of the ith signal, if the type of the ith signal is a jth infrared trigger signal, if j is not equal to M, assigning i to i +1, assigning j to j +1, and continuously judging whether the ith signal is received within the first preset time, and if j to M, finishing verification.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to an infrared access control judgment method and infrared access control equipment.
Background
In the prior art, an access control system is generally adopted to control the passageway entrance and exit, and the access control system determines whether to pass according to the authority of passers. Generally, only one person is allowed to pass through the access control device in one pass, and when the person passes through the access control device, the infrared access control device is applied to detecting the number of passing persons. The infrared entrance guard generally comprises infrared transmitting equipment and infrared receiving equipment, and the infrared receiving equipment receives the transmission signal for a long time under the default condition, has sheltered from infrared signal when someone/thing passes through, and infrared receiving equipment can't receive infrared signal to consequently judge someone/thing and pass through. However, in the process of the previous person passing through, the next person enters with the previous person, if the time interval between the two persons entering is short enough, the infrared entrance guard may not detect the condition of the following entering, and then the person without authority can use the leak to follow the person with authority to enter and exit the passageway, so that the safety of the passageway exit and entrance cannot be ensured.
Disclosure of Invention
The present invention is directed to solving one of the problems set forth above.
The invention mainly aims to provide an infrared entrance guard judgment method.
Another object of the present invention is to provide an infrared access control device.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides an infrared access control judgment method which is applied to infrared access control equipment, wherein the infrared access control equipment comprises M infrared transmitting units and M infrared receiving units, the M infrared transmitting units and the M infrared receiving units are correspondingly arranged, and when the jth infrared receiving unit of the M infrared receiving units does not receive a signal sent by the corresponding infrared transmitting unit, a jth infrared trigger signal is sent, wherein M, j is a natural number, M is more than or equal to 2, and j is more than or equal to 1 and less than or equal to M;
the method comprises the following steps: step S1: carrying out system initialization; step S2: judging whether a 1 st signal is received, and executing step S3 when the 1 st signal is received; step S3: judging the type of the 1 st signal, if the type of the 1 st signal is a 1 st infrared trigger signal, executing a step S4, otherwise, executing a step S8; step S4: the assignment i is 2, and the assignment j is 2; step S5: judging whether an ith signal is received within a first preset time, and if the ith signal is not received within the first preset time, executing step S9; if the ith signal is received within a first preset time, judging the type of the ith signal; if the ith signal is the jth infrared trigger signal, determining whether j is equal to M, if j ≠ M, executing step S6, and if j ≠ M, executing step S10; if the type of the ith signal is the j-1 infrared trigger signal, executing the step S7; if the type of the ith signal is not the jth infrared trigger signal or the jth-1 infrared trigger signal, executing step S8; step S6: assigning i to i +1, assigning j to j +1, and executing step S5, wherein i is a natural number; step S7: determining a time interval between two times of receiving j-1 infrared trigger signals, if the time interval is less than the second preset time, assigning i to i +1, and executing step S5, otherwise executing step S8; step S8: prompting error information; step S9: prompting overtime information; step S10: and finishing the verification.
In addition, in step S7, when j is 2, the second preset time is a first preset value, and when j is greater than 2 and less than M, the second preset time is a second preset value, where the first preset value is greater than the second preset value.
Further, after step S10, the method further includes: step S11: and after the infrared access control equipment reads and stores the information of completing the verification, skipping to execute the step S2.
Further, after step S8 or S9, the method further includes: step S12: and after the infrared access control equipment reads and stores the error information or the overtime information, skipping to execute the step S2.
Another aspect of the present invention provides an infrared access control apparatus, including: the device comprises M infrared transmitting units and M infrared receiving units, wherein the M infrared transmitting units and the M infrared receiving units are correspondingly arranged, and when the jth infrared receiving unit of the M infrared receiving units does not receive a signal sent by the corresponding infrared transmitting unit, a jth infrared trigger signal is sent, wherein M, j is a natural number, M is more than or equal to 2, and j is more than or equal to 1 and less than or equal to M; the initialization module is used for initializing the system; the first judging module is used for judging whether a 1 st signal is received or not, and informing the second judging module to execute judgment when the 1 st signal is received; the second judging module is used for judging the type of the 1 st signal, if the type of the 1 st signal is a 1 st infrared trigger signal, the first assignment module is informed, and if the type of the 1 st signal is not the 1 st infrared trigger signal, the error module is informed to prompt error information; the first assignment module is used for assigning i to 2 and assigning j to 2; the third judging module is used for judging whether an ith signal is received within first preset time, and if the ith signal is not received within the first preset time, the third judging module informs the overtime module to prompt overtime information; if the ith signal is received within a first preset time, judging the type of the ith signal; if the type of the ith signal is the jth infrared trigger signal, judging whether j is equal to M or not, if j is not equal to M, notifying the second assignment module to execute assignment, and if j is equal to M, notifying the verification module to finish verification; if the type of the ith signal is a j-1 infrared trigger signal, a fourth judgment module is informed to execute judgment; if the type of the ith signal is not the jth infrared trigger signal or the jth-1 infrared trigger signal, informing the error module to prompt error information; the second assignment module is configured to assign i to i +1, and j to j +1, and notify the third determination module to perform determination, where i is a natural number; the fourth judging module is configured to determine a time interval between two times of receiving the j-1 th infrared trigger signal, assign i to i +1 if the time interval is smaller than the second preset time, and notify the third judging module of performing judgment, otherwise notify the error module of prompting error information; the error module is used for prompting error information; the overtime module is used for prompting overtime information; the verification module is used for completing verification.
In addition, when j is 2, the second preset time is a first preset value, and when j is more than 2 and less than M, the second preset time is a second preset value, wherein the first preset value is larger than the second preset value.
In addition, the method further comprises the following steps: and the first reading module is used for informing the first judging module to execute judgment after the verification completion information is read and stored.
In addition, the method further comprises the following steps: and the second reading module is used for informing the first judging module to execute judgment after reading and storing the error information or the overtime information.
The invention also provides infrared access control equipment which comprises a processor, M infrared transmitting units and M infrared receiving units, wherein the M infrared transmitting units and the M infrared receiving units are correspondingly arranged, and when the jth infrared receiving unit of the M infrared receiving units does not receive a signal sent by the corresponding infrared transmitting unit, a jth infrared trigger signal is sent, wherein M, j is a natural number, M is more than or equal to 2, and j is more than or equal to 1 and less than or equal to M; the processor is configured to perform step S1-10; step S1: carrying out system initialization; step S2: judging whether a 1 st signal is received, and executing step S3 when the 1 st signal is received; step S3: judging the type of the 1 st signal, if the type of the 1 st signal is a 1 st infrared trigger signal, executing a step S4, otherwise, executing a step S8; step S4: the assignment i is 2, and the assignment j is 2; step S5: judging whether an ith signal is received within a first preset time, and if the ith signal is not received within the first preset time, executing step S9; if the ith signal is received within a first preset time, judging the type of the ith signal; if the ith signal is the jth infrared trigger signal, determining whether j is equal to M, if j ≠ M, executing step S6, and if j ≠ M, executing step S10; if the type of the ith signal is the j-1 infrared trigger signal, executing the step S7; if the type of the ith signal is not the jth infrared trigger signal or the jth-1 infrared trigger signal, executing step S8; step S6: assigning i to i +1, assigning j to j +1, and executing step S5, wherein i is a natural number; step S7: determining a time interval between two times of receiving j-1 infrared trigger signals, if the time interval is less than the second preset time, assigning i to i +1, and executing step S5, otherwise executing step S8; step S8: prompting error information; step S9: prompting overtime information; step S10: and finishing the verification.
According to the technical scheme provided by the invention, the infrared access control judging method and the infrared access control equipment can accurately judge the state of a person passing through the passageway, and can limit the entrance and exit of the person by arranging the plurality of groups of infrared transmitting units and infrared receiving units, so that only one person passes through the passageway completely, the next person can enter the passageway, and otherwise, the wrong flow can be entered. Moreover, for the case that one person enters after another person, a second preset time can be configured as a time interval for triggering the same infrared trigger signal twice, and a person is considered to be the same person if the time interval is smaller than the time interval, and a person is considered to enter after the time interval is larger than the time interval.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are 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 based on the drawings without creative efforts.
Fig. 1 is a flowchart of an infrared access control determining method according to embodiment 1 of the present invention;
fig. 2 is a flowchart of an infrared access control determining method when M is 4 according to embodiment 1 of the present invention;
fig. 3 is a structural diagram of an infrared access control device provided in embodiment 1 of the present invention;
fig. 4 is a structural diagram of another infrared access control device provided in embodiment 1 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or quantity or location.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The invention is based on an infrared access control device, which comprises a control unit, a group of infrared transmitting units arranged in sequence and a group of infrared receiving units arranged in sequence, wherein each infrared transmitting unit and each infrared receiving unit are arranged correspondingly, the infrared transmitting units transmit infrared signals to the infrared receiving units for a long time, when a person passes through the device, the person can block the signals transmitted by the infrared transmitting units one by one in sequence, when the signal transmitted by one infrared transmitting unit is blocked, the corresponding infrared receiving unit cannot receive the signal, at the moment, the infrared receiving unit transmits a corresponding infrared trigger signal to the control unit, and the control unit judges which infrared transmitting unit is blocked according to the type of the infrared trigger signal. For example, 4 pairs of infrared transmitting units and infrared receiving units are arranged on the passageway, if a person enters the passageway, in general, 4 infrared transmitting units are sequentially shielded, the corresponding infrared receiving units sequentially transmit corresponding infrared trigger signals, when the first infrared receiving unit Rev1 detects that the signal is shielded, the first infrared receiving unit Rev1 transmits a 1 st infrared trigger signal (IR1), the second infrared receiving unit Rev2 transmits a 2 nd infrared trigger signal (IR2), the third infrared receiving unit Rev3 transmits a 3 rd infrared trigger signal (IR3), and the fourth infrared receiving unit Rev4 transmits a 4 th infrared trigger signal (IR4), that is, the sequence of the infrared trigger signals is IR1 → IR2 → IR3 → IR 4. On the contrary, if the person comes out of the passage port, the infrared trigger signal is in the sequence of IR4 → IR3 → IR2 → IR 1.
Example 1
The embodiment provides an infrared access control judging method, which is applied to infrared access control equipment, wherein the infrared access control equipment comprises M infrared transmitting units and M infrared receiving units, the M infrared transmitting units and the M infrared receiving units are correspondingly arranged, and when a jth infrared receiving unit of the M infrared receiving units does not receive a signal sent by the corresponding infrared transmitting unit, a jth infrared trigger signal is sent, wherein M, j is a natural number, M is greater than or equal to 2, and j is greater than or equal to 1 and less than or equal to M.
Specifically, the infrared access control device may be installed in any place where an access passage needs to be controlled, for example, in places such as an entrance of an intelligent building, an entrance of a library, an entrance of an unmanned supermarket, and the like, so as to detect and control people entering and exiting the access passage. A plurality of infrared emission units and infrared receiving unit that infrared entrance guard's equipment contained can every independent setting, also can link into a whole setting, and every infrared emission unit and infrared receiving unit can highly the parallel and level set up relatively, also can not set up relatively, as long as guarantee that the signal that this infrared emission unit sent can by corresponding infrared receiving unit the receipt can. The infrared transmitting unit sends signals to the infrared receiving unit at intervals (the time interval is very short, and can be regarded as continuous transmission) under the control of the control unit, when the infrared receiving unit does not receive the signals sent by the corresponding infrared transmitting unit, the infrared triggering signal is sent outwards, and the characteristics of the infrared triggering signal sent by each infrared receiving unit are different, for example, different amplitudes and other characteristics can be set for each infrared triggering signal, and the control unit receiving the triggering signal can accordingly determine which infrared transmitting unit sends the signals.
In an alternative implementation of the embodiment, the infrared receiving unit may send the infrared trigger signal in the following manner: when the infrared sending unit is not shielded, the infrared receiving signal can always receive the signal sent by the infrared sending unit, so that the high level is always output, once the infrared receiving unit cannot receive the signal sent by the infrared sending unit, the high level output is jumped to the low level output, and at this moment, the infrared trigger signal can be considered to be sent.
As shown in fig. 1, the infrared access control determining method provided in this embodiment includes steps S101 to S1010, where an execution main body of the infrared determining method may be a control unit, and the control unit may be a combination of an MCU, a register, and an FPGA, may be the MCU and the register, or may be completed by the MCU alone. In the embodiment, a judgment method for a person to enter a channel is taken as an example by default, and of course, the judgment method for the person to exit the channel corresponds to this method, and only the triggering sequence of the infrared trigger signal is different.
Step S101: carrying out system initialization; specifically, the infrared access control equipment is subjected to system initialization after being powered on, and default settings are configured according to parameters. After the infrared access control equipment is initialized, the infrared access control equipment waits for receiving an infrared trigger signal or actively detects whether the infrared trigger signal exists.
Step S102: judging whether a 1 st signal is received, and executing the step S103 when the 1 st signal is received; specifically, the 1 st signal refers to the 1 st infrared trigger signal being received, and when the infrared trigger signal is not received, the following operation is not performed.
Step S103: judging the type of the 1 st signal, if the type of the 1 st signal is a 1 st infrared trigger signal, executing the step S104, otherwise executing the step S108; specifically, since the type of the trigger signal transmitted by each infrared receiving device is different, it can be determined whether the signal is the 1 st infrared trigger signal according to the characteristics of the signal. Because the infrared receiving devices are arranged according to the sequence of the people coming in and going out, only when the 1 st infrared trigger signal is judged to be received, the subsequent steps can be executed, otherwise, the process skips to the error process S108.
Step S104: the assignment i is 2, and the assignment j is 2;
step S105: judging whether an ith signal is received within a first preset time, and if the ith signal is not received within the first preset time, executing the step S109; specifically, according to the distance between the infrared transmitting units and the walking speed of the ordinary people, the reasonable time length of the first preset time can be calculated, and if any infrared trigger signal is not received after the reasonable time length is exceeded, timeout processing is carried out. The first preset time may be the total time of a person passing through the M infrared transmitting units, or the time of passing through every two infrared transmitting units, for example, if the total time of the person passing through the M infrared transmitting units normally needs 1.5s, the first preset time may be set to 1.5s, at this time, the first preset time is started from the reception of the 1 st infrared trigger signal, and when subsequently determining whether the infrared trigger signal is received within the first preset time, the time at which the 1 st infrared trigger signal is received is also used as the starting point. Of course, under the condition that the total time length of a person normally passing through the M infrared transmitting units needs 1.5s, the first preset time may also be set to be 1.5/M(s), and then the starting time of each first preset time is calculated from the time when the last infrared triggering signal is triggered, so that the total time length does not exceed 1.5 s. The total time of the personnel passing through the M infrared transmitting units can be configured according to the requirement.
If the ith signal is received within the first preset time, judging the type of the ith signal;
if the ith signal is a jth infrared trigger signal, judging whether j is equal to M, if j is not equal to M, executing step S106, and if j is equal to M, executing step S1010;
if the type of the ith signal is the j-1 infrared trigger signal, executing the step S107;
if the type of the ith signal is not the jth infrared trigger signal or the jth-1 infrared trigger signal, executing the step S108;
specifically, the signals received in step S105 may be three types, depending on the passing status of the person:
(1) and under the normal traffic condition, receiving the next infrared trigger signal. For example, if the 1 st infrared trigger signal has been received before step S105, it is a normal traffic situation that the 2 nd infrared trigger signal is received at this time;
if the 3 rd infrared trigger signal has been received before step S105, it is a normal traffic situation when the 4 th infrared trigger signal is received. Before the first circulation, because the 1 st infrared trigger signal is received previously, the next judgment is continued only when the 2 nd infrared trigger signal is received. In the latter cycle, the previously received IR trigger signal must be the j-1 st IR trigger signal. And since there are M IR receiving units in total, if j ═ M, it means that M IR trigger signals have been received, which indicates that the pedestrian has completely walked through the passage, and has completely triggered the flow of IR1 → IR2 → … … → IR (M), which should jump to the completed flow.
(2) The previous infrared trigger signal is received again. For example, if the 1 st ir trigger signal is received before step S105, and the 1 st ir trigger signal is received again, it should be determined whether the two repeated ir trigger signals are false reactions. I.e. to step S107.
(3) In case of an error, other signals than the jth infrared trigger signal or the jth-1 infrared trigger signal are received.
For example, if the 1 st ir trigger signal is received before step S105, and the 3 rd ir trigger signal is received, an error message should be reported, because the person should not receive the 3 rd ir trigger signal before receiving the 2 nd ir trigger signal in the passing process.
Step S106: assigning i to i +1, assigning j to j +1, and executing step S105, wherein i is a natural number;
step S107: determining a time interval between two times of receiving j-1 infrared trigger signals, if the time interval is less than a second preset time, assigning i to i +1, and executing step S105, otherwise executing step S108; in particular, when a person passes through the passage, the same infrared trigger signal may be triggered twice due to the separated movement of the limbs; or the same infrared trigger signal may be triggered twice due to the slow speed of people passing through. Because the reason for the repeated infrared trigger signals is various, it is necessary to determine whether the infrared trigger signals belong to a reasonable range, and therefore, when the time interval between two times of repeating the infrared trigger signals is less than the second preset time, the infrared trigger signals can be considered to be within the reasonable range. For example, the second preset time may be assigned to 350ms, and if the same infrared trigger signal is received again after the second preset time exceeds 350ms, an error process is entered.
Step S108: prompting error information; specifically, when entering the error flow, the error information can be prompted to the outside, and the prompt can be realized in a voice broadcasting mode or a display screen display mode.
In an optional implementation manner of this embodiment, after step S108, the method further includes: in step S1012A, the infrared access control device stores the error information, and jumps to step S102. Specifically, after the infrared access control device adds 1 to the number of errors, the error state is cleared, and the process goes to step S102 to start the judgment again.
Step S109: prompting overtime information; particularly, when the overtime process is entered, overtime information can be prompted to the outside, voice broadcasting can be adopted for prompting, and display screen display can also be adopted for prompting.
In an optional implementation manner of this embodiment, after step S109, the method further includes: in step S1012B, the infrared access control device stores the timeout information, and jumps to step S102. Specifically, after the infrared access control device adds 1 to the timeout number, the timeout state is cleared, and the step S102 is skipped to restart the determination.
Step S1010: and finishing the verification.
In an optional implementation manner of this embodiment, after step S1010, the method further includes: step S1011: and after the infrared access control equipment reads and stores the information of completing the verification, skipping to execute the step S102. Specifically, after the infrared access control device adds 1 to the completion times, the completion status is cleared, and the process goes to step S102 to start the judgment again.
In an optional implementation manner of this embodiment, the register records the status performed by the infrared access control device, that is, the register records the status that has been currently received or entered, for example, if the 2 nd infrared trigger signal IR2 has been currently correctly received, the status of the register may be marked as an IR2 status, if the 4 th infrared trigger signal IR4 has been currently correctly received, the status of the register may be marked as an IR4 status, if an error flow has been currently entered, the status of the register may be marked as an error status, and if a completion verification flow has been currently entered, the status of the register may be marked as a completion status. And when the MCU judges, reading the current state of the register, judging according to the current state of the register, and modifying or clearing the state of the register after the judgment is finished.
According to the infrared entrance guard judging method provided by the embodiment, accurate judgment can be carried out on the state of a person passing through a passageway outlet, the person can be limited to pass in and out by arranging the plurality of groups of infrared transmitting units and infrared receiving units, only one person can pass through the infrared transmitting units and the infrared receiving units completely, the next person can enter the infrared entrance guard, and otherwise, the person can enter an error flow. Moreover, for the case that one person enters after another person, a second preset time can be configured to serve as a time interval for triggering the same infrared trigger signal twice, and a time interval smaller than the time interval is regarded as the same person, and a time interval larger than the time interval is regarded as entering after the person.
In an optional embodiment of the present invention, in step S107, when j is 2, the second preset time is a first preset value, and when j is greater than 2 and less than M, the second preset time is a second preset value, where the first preset value is greater than the second preset value. Specifically, when j is 2, two repeated 1 st infrared trigger signals are received at this time, considering the following cases: before the 1 st infrared transmitting unit, if a person enters half and exits or a person/object enters the channel by mistake, the 1 st infrared trigger signal may be repeatedly triggered twice when the person or other person enters the channel again, if the time interval of the two 1 st infrared trigger signals exceeds the second preset time, an error may be reported, but considering that the situation that the person enters half and exits or the person enters the channel by mistake may frequently occur, if the second preset time is set to be very short, the error may be frequently reported. Therefore, it is necessary to set the second preset time when j > 2 to be slightly longer, which is not the case when j > 2, and therefore there is no need to intentionally extend the second preset time when j > 2. Through setting up the numerical value of different second preset time to different states, can guarantee on the one hand can not report the mistake frequently because of the mistake gets into the passageway, and on the other hand can guarantee again to detect out the condition of trailing. For example, the first preset value may take 500ms, and the second preset value may take 350 ms.
Taking M ═ 4 as an example, this embodiment provides a specific implementation method, as shown in fig. 2:
step S201: carrying out system initialization;
step S202: judging whether an infrared trigger signal is received, and executing the step S203 if the infrared trigger signal is received;
step S203: judging the type of the received infrared trigger signal, if the type is the infrared trigger signal IR1 sent by the No. 1 infrared receiving unit, executing the step S204, otherwise executing the step S2010;
step S204: judging whether the infrared trigger signal is received within the time t1, if the infrared trigger signal is not received within the time t1, executing the step S2011, otherwise executing the step S205;
step S205: judging the type of the infrared trigger signal received within the time t1, and if the infrared trigger signal IR2 sent by the 2 nd infrared receiving unit is received within the time t1, executing the step S206; if the infrared trigger signal IR1 sent by the 1 st infrared receiving unit is received within t1 time, judging whether the time interval between two times of IR1 is less than t2 time, if so, executing step S204; if the infrared trigger signal (IR3 or IR4) transmitted by the 3 rd infrared receiving unit or the 4 th infrared receiving unit is received within the time t1, performing the step S2010;
step S206: judging whether the infrared trigger signal is received within the time t1, if the infrared trigger signal is not received within the time t1, executing the step S2011, otherwise executing the step S207;
step S207: judging the type of the infrared trigger signal received within the time t1, and if the infrared trigger signal IR3 sent by the 3 rd infrared receiving unit is received within the time t1, executing the step S208; if the infrared trigger signal IR2 sent by the 2 nd infrared receiving unit is received within the time t1, determining whether the time interval between two times of IR2 is less than the time t3, and if the time is less than the time t3, executing the step S206; if the infrared trigger signal (IR1 or IR4) transmitted by the 1 st infrared receiving unit or the 4 th infrared receiving unit is received within the time t1, performing the step S2010;
step S208: judging whether the infrared trigger signal is received within the time t1, if the infrared trigger signal is not received within the time t1, executing the step S2011, otherwise executing the step S209;
step S209: if the infrared trigger signal IR4 transmitted by the 4 th infrared receiving unit is received within the time t1, go to step S2012; if the infrared trigger signal IR3 sent by the 3 rd infrared receiving unit is received within the time t1, determining whether the time interval between two times of IR3 is less than the time t3, and if the time is less than the time t3, executing the step S208; if the infrared trigger signal transmitted by the 1 st or 2 nd infrared receiving unit is received within the time t1 (IR1 or IR2), executing step S2010;
step S2010: prompting error information;
step S2011: prompting overtime information;
step S2012: and finishing the verification.
The present embodiment further provides an infrared access control device 30, and in the present embodiment, only the structure of the infrared access control device 30 is briefly described, and for the rest of things, reference is made to the description in the corresponding method. As shown in fig. 3, the infrared access control device 30 includes: m infrared emission units 301 (including Send1, Send2 … … Send (M)) and M infrared receiving units 302 (including Rev1, Rev2 … … Rev (M)), wherein the M infrared emission units 301 and the M infrared receiving units 302 are correspondingly arranged, and when the jth infrared receiving unit of the M infrared receiving units 301 does not receive the signal sent by the corresponding infrared emission unit, a jth infrared trigger signal is sent, wherein M, j is a natural number, M is more than or equal to 2, and j is more than or equal to 1 and less than or equal to M;
an initialization module 303, configured to perform system initialization;
a first judging module 304, configured to judge whether a 1 st signal is received, and notify a second judging module to perform judgment when the 1 st signal is received;
the second judging module 305 is used for judging the type of the 1 st signal, if the type of the 1 st signal is a 1 st infrared trigger signal, the first assignment module is informed, and if the type of the 1 st signal is not the 1 st infrared trigger signal, the error module is informed to prompt error information;
a first assignment module 306, configured to assign i to 2 and j to 2;
a third determining module 307, configured to determine whether an ith signal is received within a first preset time, and if the ith signal is not received within the first preset time, notify the timeout module to prompt timeout information; if the ith signal is received within the first preset time, judging the type of the ith signal; if the type of the ith signal is the jth infrared trigger signal, judging whether j is equal to M or not, if j is not equal to M, informing the second assignment module to execute assignment, and if j is equal to M, informing the verification module to complete verification; if the type of the ith signal is the j-1 infrared trigger signal, informing a fourth judgment module to execute judgment; if the type of the ith signal is not the jth infrared trigger signal or the jth-1 infrared trigger signal, informing an error module to prompt error information;
a second assignment module 308, configured to assign i to i +1, and j to j +1, and notify a third determination module to perform determination, where i is a natural number;
a fourth judging module 309, configured to determine a time interval between two times of receiving j-1 th infrared trigger signals, if the time interval is smaller than a second preset time, assign i to i +1, and notify the third judging module to perform judgment, otherwise notify the error module to prompt an error message;
an error module 310 for prompting an error message;
a timeout module 311, configured to prompt for timeout information;
a verification module 312 for completing the verification.
In an optional embodiment of the present invention, when j is 2, the second preset time is a first preset value, and when j is greater than 2 and less than M, the second preset time is a second preset value, where the first preset value is greater than the second preset value.
In an optional embodiment of the present invention, the infrared access control device 30 further includes: the first reading module 313 is configured to, after reading and saving the information that the verification is completed, notify the first determining module to perform the determination.
In an optional embodiment of the present invention, the infrared access control device 30 further includes: the second reading module 314 is configured to, after reading and storing the error information or the timeout information, notify the first determining module to perform the determination.
The present invention further provides another infrared access control device 40, in this embodiment, only the structure of the infrared access control device 40 is briefly described, and for the rest of things, reference is made to the description in the corresponding method. As shown in fig. 4, the infrared receiving device comprises a processor 401, M infrared emitting units 402 and M infrared receiving units 403, where the M infrared emitting units 402 and the M infrared receiving units 403 are correspondingly arranged, and when a jth infrared receiving unit of the M infrared receiving units 402 does not receive a signal sent by a corresponding infrared emitting unit, a jth infrared trigger signal is sent, where M, j is a natural number, M is greater than or equal to 2, and j is greater than or equal to 1 and less than or equal to M;
the processor 401 is configured to execute step S1-10;
step S1: carrying out system initialization;
step S2: judging whether a signal is received, and executing the step S3 when the 1 st signal is received;
step S3: judging the type of the 1 st signal, if the type of the 1 st signal is the 1 st infrared trigger signal, executing the step S4, otherwise, executing the step S8;
step S4: the assignment i is 2, and the assignment j is 2;
step S5: judging whether an ith signal is received within a first preset time, and if the ith signal is not received within the first preset time, executing the step S9;
if the ith signal is received within the first preset time, judging the type of the ith signal;
if the ith signal is the jth infrared trigger signal, judging whether j is equal to M, if j is not equal to M, executing the step S6, and if j is equal to M, executing the step S10;
if the type of the ith signal is the j-1 infrared trigger signal, executing the step S7;
if the type of the ith signal is not the jth infrared trigger signal or the jth-1 infrared trigger signal, executing the step S8;
step S6: assigning i to i +1, assigning j to j +1, and executing step S5, wherein i is a natural number;
step S7: determining a time interval between the two times of receiving j-1 infrared trigger signals, if the time interval is less than a second preset time, assigning i to i +1, and executing step S5, otherwise executing step S8;
step S8: prompting error information;
step S9: prompting overtime information;
step S10: and finishing the verification.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. An infrared access control judgment method is characterized by being applied to infrared access control equipment, wherein the infrared access control equipment comprises M infrared transmitting units and M infrared receiving units, the M infrared transmitting units and the M infrared receiving units are correspondingly arranged, and when a jth infrared receiving unit of the M infrared receiving units does not receive a signal sent by the corresponding infrared transmitting unit, a jth infrared trigger signal is sent, wherein M, j is a natural number, M is more than or equal to 2, and j is more than or equal to 1 and less than or equal to M;
the method comprises the following steps:
step S1: carrying out system initialization;
step S2: judging whether a 1 st signal is received, and executing step S3 when the 1 st signal is received;
step S3: judging the type of the 1 st signal, if the type of the 1 st signal is a 1 st infrared trigger signal, executing a step S4, otherwise, executing a step S8;
step S4: the assignment i is 2, and the assignment j is 2;
step S5: judging whether an ith signal is received within a first preset time, and if the ith signal is not received within the first preset time, executing step S9;
if the ith signal is received within a first preset time, judging the type of the ith signal;
if the ith signal is the jth infrared trigger signal, determining whether j is equal to M, if j ≠ M, executing step S6, and if j ≠ M, executing step S10;
if the type of the ith signal is the j-1 infrared trigger signal, executing the step S7;
if the type of the ith signal is not the jth infrared trigger signal or the jth-1 infrared trigger signal, executing step S8;
step S6: assigning i to i +1, assigning j to j +1, and executing step S5, wherein i is a natural number;
step S7: determining a time interval between two times of receiving j-1 infrared trigger signals, if the time interval is less than the second preset time, assigning i to i +1, and executing step S5, otherwise executing step S8;
step S8: prompting error information;
step S9: prompting overtime information;
step S10: and finishing the verification.
2. The method of claim 1,
in the step S7, when j is 2, the second preset time is a first preset value, and when j is greater than 2 and less than M, the second preset time is a second preset value, where the first preset value is greater than the second preset value.
3. The method according to claim 1 or 2, wherein after step S10, the method further comprises:
step S11: and after the infrared access control equipment reads and stores the information of completing the verification, skipping to execute the step S2.
4. The method according to any one of claims 1 to 3, wherein after step S8 or S9, the method further comprises:
step S12: and after the infrared access control equipment reads and stores the error information or the overtime information, skipping to execute the step S2.
5. An infrared entrance guard's equipment which characterized in that includes:
the device comprises M infrared transmitting units and M infrared receiving units, wherein the M infrared transmitting units and the M infrared receiving units are correspondingly arranged, and when the jth infrared receiving unit of the M infrared receiving units does not receive a signal sent by the corresponding infrared transmitting unit, a jth infrared trigger signal is sent, wherein M, j is a natural number, M is more than or equal to 2, and j is more than or equal to 1 and less than or equal to M;
the initialization module is used for initializing the system;
the first judging module is used for judging whether a 1 st signal is received or not, and informing the second judging module to execute judgment when the 1 st signal is received;
the second judging module is used for judging the type of the 1 st signal, if the type of the 1 st signal is a 1 st infrared trigger signal, the first assignment module is informed, and if the type of the 1 st signal is not the 1 st infrared trigger signal, the error module is informed to prompt error information;
the first assignment module is used for assigning i to 2 and assigning j to 2;
the third judging module is used for judging whether an ith signal is received within first preset time, and if the ith signal is not received within the first preset time, the third judging module informs the overtime module to prompt overtime information; if the ith signal is received within a first preset time, judging the type of the ith signal; if the type of the ith signal is the jth infrared trigger signal, judging whether j is equal to M or not, if j is not equal to M, notifying the second assignment module to execute assignment, and if j is equal to M, notifying the verification module to finish verification; if the type of the ith signal is a j-1 infrared trigger signal, a fourth judgment module is informed to execute judgment; if the type of the ith signal is not the jth infrared trigger signal or the jth-1 infrared trigger signal, informing the error module to prompt error information;
the second assignment module is configured to assign i to i +1, and j to j +1, and notify the third determination module to perform determination, where i is a natural number;
the fourth judging module is configured to determine a time interval between two times of receiving the j-1 th infrared trigger signal, assign i to i +1 if the time interval is smaller than the second preset time, and notify the third judging module of performing judgment, otherwise notify the error module of prompting error information;
the error module is used for prompting error information;
the overtime module is used for prompting overtime information;
the verification module is used for completing verification.
6. The apparatus of claim 5,
and when j is larger than 2, the second preset time is a first preset value, and when j is larger than 2 and smaller than M, the second preset time is a second preset value, wherein the first preset value is larger than the second preset value.
7. The apparatus of claim 5 or 6, further comprising:
and the first reading module is used for informing the first judging module to execute judgment after the verification completion information is read and stored.
8. The apparatus of any of claims 5 to 7, further comprising:
and the second reading module is used for informing the first judging module to execute judgment after reading and storing the error information or the overtime information.
9. An infrared access control device is characterized by comprising a processor, M infrared transmitting units and M infrared receiving units, wherein the M infrared transmitting units and the M infrared receiving units are correspondingly arranged, and when the jth infrared receiving unit of the M infrared receiving units does not receive a signal sent by the corresponding infrared transmitting unit, a jth infrared trigger signal is sent, wherein M, j is a natural number, M is more than or equal to 2, and j is more than or equal to 1 and less than or equal to M;
the processor is configured to perform step S1-10;
step S1: carrying out system initialization;
step S2: judging whether a 1 st signal is received, and executing step S3 when the 1 st signal is received;
step S3: judging the type of the 1 st signal, if the type of the 1 st signal is a 1 st infrared trigger signal, executing a step S4, otherwise, executing a step S8;
step S4: the assignment i is 2, and the assignment j is 2;
step S5: judging whether an ith signal is received within a first preset time, and if the ith signal is not received within the first preset time, executing step S9;
if the ith signal is received within a first preset time, judging the type of the ith signal;
if the ith signal is the jth infrared trigger signal, determining whether j is equal to M, if j ≠ M, executing step S6, and if j ≠ M, executing step S10;
if the type of the ith signal is the j-1 infrared trigger signal, executing the step S7;
if the type of the ith signal is not the jth infrared trigger signal or the jth-1 infrared trigger signal, executing step S8;
step S6: assigning i to i +1, assigning j to j +1, and executing step S5, wherein i is a natural number;
step S7: determining a time interval between two times of receiving j-1 infrared trigger signals, if the time interval is less than the second preset time, assigning i to i +1, and executing step S5, otherwise executing step S8;
step S8: prompting error information;
step S9: prompting overtime information;
step S10: and finishing the verification.
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| CN201811561727.1A CN111354111B (en) | 2018-12-20 | 2018-12-20 | Infrared access control judgment method and infrared access control equipment |
| PCT/CN2019/102130 WO2020125047A1 (en) | 2018-12-20 | 2019-08-23 | Infrared access control determination method and infrared access control device |
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| CN201811561727.1A CN111354111B (en) | 2018-12-20 | 2018-12-20 | Infrared access control judgment method and infrared access control equipment |
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| CN111354111B (en) | 2021-05-14 |
| WO2020125047A1 (en) | 2020-06-25 |
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