CN114241643B

CN114241643B - Access control system and safety operation monitoring method thereof

Info

Publication number: CN114241643B
Application number: CN202111306540.9A
Authority: CN
Inventors: 谌庆; 彭振荣; 周小明; 苏景春; 杨思家; 钟柏生
Original assignee: Futaihua Industry Shenzhen Co Ltd
Current assignee: Futaihua Industry Shenzhen Co Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2023-10-20
Anticipated expiration: 2041-11-05
Also published as: CN114241643A

Abstract

The application discloses an access control system and a safety operation monitoring method thereof, wherein the access control system is arranged in an automatic operation area and comprises a lock, a first reset switch arranged in the automatic operation area, a second reset switch arranged outside the automatic operation area and access control equipment, wherein the access control equipment is used for receiving access rights, recording and counting the number of people entering and exiting the automatic operation area based on the access rights, and judging that the automatic operation area reaches a safety state when a first reset signal, a locking state signal of the lock and a second reset signal are sequentially received and the counted number of people entering and exiting is equal, so that the starting of machine equipment in the automatic operation area is controlled. Therefore, the access control system can effectively monitor the access of operators and control the equipment of the machine, has high safety coefficient of automatic production, and is beneficial to ensuring the personal safety of the operators.

Description

Access control system and safety operation monitoring method thereof

Technical Field

The application relates to the technical field of safety operation management, in particular to an access control system and a safety operation monitoring method thereof.

Background

In order to realize safe operation, a protective net and a key lock are usually assembled in an automatic operation area on an industrial production line, and only operators are provided with keys to enter and exit the automatic operation area. However, the management mode lacks records of people entering and exiting, especially when people enter and exit frequently, the operators cannot intuitively know the number of people in the current automatic operation area, when a plurality of people work, the situation that the people do not leave completely, the automatic operation area is locked, and even the machine equipment in the automatic operation area is started can be seen, and the management mode has security holes.

Disclosure of Invention

The application mainly aims to provide an access control system and a safety operation monitoring method thereof, and aims to solve the problem that in the prior art, no supervision personnel enter and exit conditions, so that potential safety hazards exist in personnel operation.

An access control system is arranged in an automatic operation area and is connected with machine equipment in the automatic operation area, and operators in the automatic operation area are allocated with corresponding access control rights; the access control system comprises a lock, a first reset switch, a second reset switch and access control equipment, wherein,

The locking piece is used for locking a door of the automatic operation area, is connected with the access control equipment and sends a state signal of the locking piece to the access control equipment;

the first reset switch is arranged in the automatic operation area, is connected with the access control equipment and is used for sending a first reset signal generated by the first reset switch to the access control equipment;

the second reset switch is arranged outside the automatic operation area, is connected with the access control equipment and is used for sending a second reset signal generated by the second reset switch to the access control equipment;

the access control equipment is used for receiving the access permission, and recording and counting the number of people entering and exiting the automatic operation area based on the access permission;

the door control device is used for receiving the state signal of the locking piece, the first reset signal and the second reset signal, judging that the automatic operation area reaches a safe state when the first reset signal, the locking state signal of the locking piece and the second reset signal are sequentially received and the counted number of people in and out is equal, and controlling the machine device to start under the condition that the automatic operation area is safe.

Preferably, the access control device is configured to determine that the automatic operation area does not reach the safe state and control the machine device to be turned off when the received signal lacks any one of the first reset signal, the locking state signal of the locking piece, and the second reset signal, or the receiving sequence of the signals is changed, or the counted number of people entering or exiting is unequal.

Preferably, the locking piece comprises an automatic door lock, a manual door lock and a sensor, wherein the automatic door lock is connected with the access control equipment and sends a state signal of the automatic door lock to the access control equipment, and the automatic door lock is controlled by the access control equipment;

the sensor is used for detecting the state of the manual door lock and generating a state signal of the manual door lock, and is connected with the access control equipment and sends the state signal of the manual door lock to the access control equipment;

the access control device is used for judging that the automatic operation area reaches a safe state and generating a starting signal of the machine device when the first reset signal, the locking state signal of the automatic door lock, the locking state signal of the manual door lock and the second reset signal are sequentially received and the counted number of people entering and exiting is equal, so that the machine device is started;

The access control device is used for judging that the automatic operation area does not reach the safety state when the received signal lacks any one of the first reset signal, the locking state signal of the automatic door lock, the locking state signal of the manual door lock and the second reset signal, or the receiving sequence of the signals is changed, or the counted number of people entering or exiting is unequal, and further generating a closing signal of the machine device, so that the machine device is closed.

Further, the access control equipment comprises an access right reader, a man-machine interaction screen, an alarm and a control end, wherein,

the access control authority reader-writer is used for reading the access control authority of the operator;

the man-machine interaction screen is used for setting equipment parameters of the access control equipment, reset time delay time durations of the first reset signal and the second reset signal and access permission of the operator, and displaying the states of the automatic door lock and the manual door lock, the working state of the machine equipment, the number of people entering and exiting the operator, the reset time delay time durations of the first reset signal and the second reset signal, wherein the forced unlocking instruction and the unlocking instruction of the automatic door lock are input by the operator;

The alarm is used for prompting unlocking, door opening, door closing and locking operations, resetting operations of the first reset switch and the second reset switch and abnormal conditions of the machine equipment;

the control end is connected with the automatic door lock, the sensor, the first reset switch, the second reset switch, the access control permission reader-writer, the man-machine interaction screen, the alarm and the machine equipment, and is used for receiving information from the automatic door lock, the sensor, the first reset switch, the second reset switch, the access control permission reader-writer, the man-machine interaction screen and the machine equipment and controlling the automatic door lock, the access control permission reader-writer, the man-machine interaction screen, the alarm and the machine equipment.

Further, the operators in the automatic operation area are allocated with corresponding access cards containing access rights, and the access cards are divided into user cards and management cards;

the access control authority owned by the user card comprises personnel access recording authority and unlocking authority of the automatic door lock;

the access control authority owned by the management card comprises an authorized management authority, a forced unlocking authority, a personnel access recording authority and an unlocking authority of the automatic door lock;

The authorization management rights include: setting the group of the automatic operation area where the access control system is located, authorizing the user card and inputting the related information of the operator;

the authorization comprises the steps of granting the user card personnel access recording authority, unlocking authority of the automatic door lock and setting the valid period of the authority;

the entered relevant information of the operator comprises the user name, the work number and the group of the operator.

The safety operation monitoring method of the access control system comprises the following steps:

s1, receiving the access control authority, the state signal of the lock piece and/or the first reset signal and the second reset signal;

s2, when the access control authority is received, recording the entering and exiting people of the operator in and out of the automatic operation area based on the access control authority;

and S3, when the first reset signal, the locking state signal of the locking piece and the second reset signal are sequentially received, and the counted number of people entering and exiting is equal, judging that the automatic operation area reaches a safe state, and controlling the starting of the machine equipment in the automatic operation area.

Preferably, the safety job monitoring method further comprises:

when the received signal lacks any one of the first reset signal, the locking state signal of the locking piece and the second reset signal, or the receiving sequence of the signals is changed, or the counted number of people entering and exiting is unequal, judging that the automatic operation area does not reach the safe state, and controlling the machine equipment to be shut down.

Preferably, in step S1, during the process of the operator entering the automation operation area, the access control system receives status signals of the access control authority, an automatic door lock and a manual door lock in the lock;

in step S1, during the process of evacuating the automated operation area by the operator, the access control system receives the first reset signal, the status signal of the automatic door lock, the status signal of the manual door lock, the second reset signal and the access control authority.

Preferably, the safety job monitoring method further comprises:

displaying states of an automatic door lock and a manual door lock in the lock part, states of the machine equipment and counted people entering and exiting numbers in real time through a man-machine interaction screen;

And displaying the entry record or the evacuation record of the operator through a man-machine interaction screen.

Preferably, the safety job monitoring method further comprises:

when abnormal conditions of control failure and communication errors of the access control system to the machine equipment occur, alarming and prompting the abnormal conditions;

and when an abnormal condition occurs, a forced unlocking instruction is received, and the machine equipment is controlled to be shut down in a power-off mode and the automatic door lock in the lock piece is controlled to be opened based on the forced unlocking authority in the access control authority.

Compared with the prior art, the application has the following advantages:

1. the method is based on an access control system, and can effectively monitor the ingress and egress of personnel. On one hand, only authorized personnel smoothly enter an automatic operation area, so that non-operation personnel can be prevented from privately intruding; on the other hand, the access control system can carry out statistics and visual display on the number of people entering and exiting, and after judging that an automatic operation area reaches a safe state, the access control system can control the machine equipment to start, so that the door can be locked and the machine equipment can be prevented from being started without all people being evacuated, and the personal safety of the operation personnel is ensured.

2. According to the application, the door control system can display the states of the automatic door lock, the manual door lock and the machine equipment and the number of people entering and exiting in real time, and the personnel entering and exiting records can be traced, so that operators can know the conditions of the personnel and the equipment in an automatic operation area in time, and the transparency of the operation is improved.

3. The application carries out group management on the access rights of operators, and the operators can only operate in the same group of automatic operation areas, so that the operators of different automatic production lines can be prevented from carrying out line crossing operation, and standard and safe operation is ensured.

4. The door control system uses the automatic door lock and the manual door lock to replace the traditional key lock, and has higher safety coefficient in automatic production. Moreover, the access control system can perform self-check, and can check the states of the automatic door lock, the manual door lock and the machine equipment and the number of people entering and exiting, so that abnormal conditions such as communication errors, accidental reset and invalid control of the machine equipment can be timely found, and the automatic safety production management and control are facilitated.

5. The access control system can give an alarm and prompt for operations such as unlocking and opening a door, closing and locking, resetting the machine equipment and the like and abnormal conditions of the machine equipment, is convenient for operators to know, can take corresponding measures in time for the abnormal conditions of the machine equipment, and avoids safety accidents.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an access control system according to an embodiment of the present application.

Fig. 2 is a block diagram of the door control system shown in fig. 1.

Fig. 3 is a schematic diagram of a first control end in the access control system shown in fig. 2.

Fig. 4 is a schematic diagram of a second control end in the access control system shown in fig. 2.

Fig. 5 is a flowchart of a method for monitoring safety operation of the access control system shown in fig. 1.

Fig. 6 is a flow chart of the door access system of fig. 1 monitoring the entry of an operator into an automated work area.

Fig. 7 is a schematic diagram of an interface change of a man-machine interaction screen of the access control system shown in fig. 1 when an operator enters an automatic operation area.

Fig. 8 is a flow chart of the door access system of fig. 1 monitoring the evacuation of an operator from an automated work area.

Fig. 9 is a schematic diagram showing interface changes of a man-machine interaction screen in the process that the access control system shown in fig. 1 monitors that an operator withdraws from an automatic operation area.

Fig. 10 is a schematic diagram of interface changes of a man-machine interaction screen in the process that the access control system shown in fig. 1 monitors that an operator withdraws from an automatic operation area in advance.

Fig. 11 is a schematic diagram showing interface changes of a man-machine interaction screen in the process of monitoring forced unlocking by the access control system shown in fig. 1.

Description of the main reference signs

Access control system 100

Lock 10

Automatic door lock 1

Manual door lock 2

Sensor 3

First reset switch 4

Second reset switch 5

Entrance guard control equipment 6

Access rights reader 61

Man-machine interaction screen 62

Unlocking switch 63

Alarm 64

Control end 65

Contact 650

First control terminal 651

Second control terminal 652

Housing 66

RS485 cable 7

Automated job area 200

Door 201

Machine 202

The application will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

Referring to fig. 1, the present application provides an access control system 100, and the access control system 100 can be applied to an automation operation area 200 on a production line. For use with the access control system 100, each worker entering the automation operation area 200 will be assigned a corresponding access control authority, and the access control system 100 can monitor the entrance and exit of the worker into and out of the automation operation area 200 according to the access control authority.

Referring to fig. 1 and 2, the door control system 100 includes a lock 10, a first reset switch 4, a second reset switch 5, and a door control device 6.

Wherein the lock 10 is used to lock a door 201 of the automation area 200. In at least one embodiment of the present application, the lock 10 includes an automatic door lock 1, a manual door lock 2, and a sensor 3.

In this embodiment, the automatic door lock 1 may use an electromagnetic lock, and lock or unlock the door by energizing or de-energizing. Under the condition of electrifying, the automatic door lock 1 can generate adsorption force to absorb the door plate, so that the door is locked, and at the moment, the automatic door lock 1 is in a locking state, the adsorption force can reach 280N, and the door is not easy to open. Under the condition of power failure, the automatic door lock 1 loses the adsorption force, and can be opened, and at the moment, the automatic door lock 1 is in an opened state.

In this embodiment, the manual door lock 2 may be a mechanical switch, such as a latch switch, and may be manually locked and unlocked by itself.

The sensor 3 is used to detect the open and closed states of the door 201 and the manual door lock 2. In this embodiment, the sensor 3 may be a proximity switch, and may be mounted on the door frame of the door 201 or other location where the door 201 and the manual door lock 2 may be sensed.

It will be appreciated that when the door 201 is in the closed state and the manual door lock 2 is in the locked state, the sensor 3 may sense the door 201 and the manual door lock 2 in the sensing range, so that a corresponding high level signal is generated, and the high level signal is used as the locking state signal of the manual door lock 2. When both the manual door lock 2 and the door 201 are in the open state, the sensor 3 generates a corresponding low level signal as the open state signal of the manual door lock 2 since the manual door lock 2 and the door 201 are not simultaneously within the sensing range of the sensor 3.

The first reset switch 4 is installed in the automation area 200. It will be appreciated that when the first reset switch 4 is pressed, i.e. on behalf of issuing a first reset instruction, the first reset switch 4 generates a first reset signal. The first reset signal has a certain reset delay time length.

The second reset switch 5 is installed outside the automation work area 200. It will be appreciated that when the second reset switch 5 is pressed, i.e. on behalf of issuing a second reset instruction, the second reset switch 5 generates a second reset signal. The second reset signal has a certain reset delay time length.

In at least one embodiment of the present application, referring to fig. 1, the access control device 6 may be installed on the door 201. Of course, it may be installed around the door 201, and the present application is not limited to the installation position of the entrance guard control apparatus 6.

Referring to fig. 2, the access control device 6 includes an access right reader 61, a man-machine interaction screen 62, an alarm 64 and a control end 65.

The access right reader-writer 61, the man-machine interaction screen 62, the alarm 64 and the control end 65 may be all assembled into a whole, or may have a part as an independent component. For example, in this embodiment, referring to fig. 7 and fig. 9 to fig. 11, the access right reader/writer 61, the man-machine interaction screen 62, the alarm 64 and the control end 65 are all installed in the housing 66 to form the access control device 6, and the man-machine interaction screen 62 is disposed on the surface of the housing 66.

The access right reader/writer 61 is used for reading the access right of the operator. In this embodiment, the access rights are stored in the access card. Accordingly, the entrance guard authority reader/writer 61 employs a card reader/writer. The access card may be, for example, a wireless radio frequency identification (Radio Frequency Identification, RFID) card, and the access right reader 61 may be, for example, an RFID reader.

The access card can be further divided into a user card and a management card according to the access authority level.

The access control authority owned by the user card comprises personnel access recording authority and unlocking authority of the automatic door lock 1.

It may be understood that the personnel access record authority refers to authority that allows the access control system 100 to record the personnel access, and the recording may be, for example, that an access record corresponding to the entering operator is generated and the personnel access registration is performed, and that an evacuation record corresponding to the evacuating operator is generated and the access registration performed before the evacuation operator is performed. The unlocking right of the automatic door lock 1 refers to the right of controlling the door control system 100 to open the automatic door lock 1.

The authority level of the management card is higher than that of the user card. The access control authority owned by the management card comprises an authorized management authority, a forced unlocking authority, a personnel access recording authority and an unlocking authority of the automatic door lock 1.

The personnel access record authority, the unlocking authority of the automatic door lock 1 and the access authority of the user card are identical, and are not described in detail herein.

The authorization in the authorization management authority includes the access permission granted to the user card personnel, the unlocking authority of the automatic door lock 1, and the expiration date of the set authority. The authorization management rights include: and setting the group of the automatic operation area 200 where the access control system 100 is positioned, authorizing the user card and inputting the related information of the operator. The related information of the operator includes the user name, the work number, the group and the like of the operator.

It will be appreciated that the operator may only access the same group of automated job areas 200 based on the access card, thus avoiding out-of-line operations of the operator for different lines.

The forced unlocking authority refers to authority for controlling the door control system 100 to open the automatic door lock 1 and controlling the machine equipment 202 to be forcibly powered off and shut down.

Of course, the application is not limited to the storage carrier of the access rights, and the access rights can be stored by using physiological information of the operator. The physiological information may be face information, iris information, fingerprint information, etc., and correspondingly, the access right reader 61 may be a camera, a fingerprint reader, etc.

The man-machine interaction screen 62 has interaction recognition and display functions. The interaction mode can be key input, touch control, gesture control, voice control and the like. In at least one embodiment of the present application, the operator may set device parameters of the access control device 6, such as a communication address, baud rate, voice volume, etc., on the human-machine interaction screen 62. The operator can set the reset delay time length of the first reset signal and the second reset signal on the man-machine interaction screen 62, can input the access control authority of the operator, input a forced unlocking instruction and an unlocking instruction of the automatic door lock 1, and search the history of personnel entering and exiting.

In order to facilitate the operator in the automation area 200 to issue an unlocking command for the automatic door lock 1, the man-machine interaction screen 62 may be disposed inside and outside the automation area 200, respectively. Of course, an unlocking switch 63 (see fig. 1) may be provided in the automation area 200. When the unlock switch 63 is pressed, an unlock instruction of the automatic door lock 1 is issued.

Referring to fig. 7 and fig. 9 to fig. 11, in some embodiments, the man-machine interaction screen 62 may display the states of the automatic door lock 1 and the manual door lock 2, the working states of the machine devices 202 in the automation working area 200, the number of people entering or exiting the working personnel, and the reset delay time periods of the first reset signal and the second reset signal in real time.

The human-machine interaction screen 62 may also display the operation mode within the automation operation region 200 in real time, for example, as a personnel operation mode or a machine operation mode. A personnel work mode refers to the machine 202 being shut down and the worker being able to work in the automated work area 200. Machine work mode refers to the absence of the operator in the automated work area 200, and machine equipment 202 may initiate a work.

The alarm 64 is used for prompting unlocking, door opening, door closing and locking operations, resetting operations of the first reset switch 4 and the second reset switch 5, abnormal conditions of the machine equipment 202 and the like. Of course, the present application is not limited to the prompting mode of the alarm 64, and may be a voice prompt, for example, when the user is ready to enter, the voice prompt "please enter the access right", after the user has registered to enter the automation operation area 200, the voice prompt "you have entered the risk area, please note the security", etc., and the voice content may be set according to the actual needs, or may be an acousto-optic prompt combining voice and an indicator light. When the alarm 64 alarms, the man-machine interaction screen 62 can also display corresponding alarm prompts at the same time.

Referring to fig. 2, the control end 65 is connected to the access right reader/writer 61, and is configured to receive the access right read by the access right reader/writer 61, and further record the entry and exit of the operator into and from the automated operation area 200 based on the access right, that is, generate an authorized entry record and evacuation record of the operator, and count the number of the entry and exit persons.

The entry record contains information such as the name, the job number, the group to which the worker belongs, and entry time (the entry time may be the time at which the access right is entered). The evacuation record contains information such as the name, job number, belonging group, evacuation time (the evacuation time may be the time when access rights are entered) of the worker. For convenient tracing, the entry record and the evacuation record can be stored locally or uploaded to the cloud.

The control end 65 is further connected to the man-machine interaction screen 62, and is configured to receive a forced unlocking instruction issued by the man-machine interaction screen 62 and an unlocking instruction of the automatic door lock 1, and control display content of the man-machine interaction screen 62, for example, display an entry record or an evacuation record.

The control end 65 is also connected to the alarm 64, and can be used for controlling the alarm content of the alarm 64.

The control end 65 is further connected to a machine device 202 in the automation working area 200, and is configured to generate a start signal or a stop signal of the machine device 202, so that a control switch in the machine device 202 is opened or closed (the control switch may refer to fig. 4, and is not numbered), thereby enabling the machine device 202 to be started or stopped. It will be appreciated that the control switch in the machine 202 is opened or closed, and a corresponding control switch signal may be generated, and the control terminal 65 may learn the state of the machine 202 based on the control switch signal.

The control end 65 is further connected to the automatic door lock 1, so as to control the automatic door lock 1 to be in a locked state or an unlocked state. It will be appreciated that the control end 65 may control the state of the automatic door lock 1 by controlling the power supply condition of the internal power supply of the automatic door lock 1, and the automatic door lock 1 may correspondingly output different electrical signals under different power supply conditions, where the electrical signals may be used as the locking state signal or the unlocking state signal of the automatic door lock 1. That is, when the control terminal 65 is energized by controlling the internal power of the automatic door lock 1, the automatic door lock 1 is in the locked state, and the control terminal 65 can accordingly receive the locked state signal of the automatic door lock 1. When the door control device 6 is in a power-off state by controlling the internal power supply of the automatic door lock 1, the automatic door lock 1 is in an open state, and the control end 65 can correspondingly receive the open state signal of the automatic door lock 1.

The control end 65 is further connected to the sensor 3, and may receive a locking state signal or an unlocking state signal of the manual door lock 2 generated by the sensor 3.

The control terminal 65 is further connected to the first reset switch 4, and may receive a first reset signal from the first reset switch 4.

The control terminal 65 is further connected to the second reset switch 5, and may receive a second reset signal from the second reset switch 5.

When the unlocking switch 63 is disposed in the automation area 200, the control end 65 is further connected to the unlocking switch 63, and can receive an unlocking command of the automatic door lock 1 from the unlocking switch 63.

The control end 65 may preset the condition that the automation working area 200 reaches the safe state. In this embodiment, when the control end 65 sequentially receives the first reset signal, the locking state signals of the automatic door lock 1 and the manual door lock 2, and the second reset signal, and the counted number of people entering is equal to the number of people exiting, it is determined that the automatic operation area 200 reaches the safe state, and then a start signal of the machine device 202 may be generated, so that the machine device 202 is started.

For another example, when the signal received by the control end 65 lacks any one of the first reset signal, the locking state signals of the automatic door lock 1 and the manual door lock 2, and the second reset signal, or the receiving order of the four signals is changed, or the counted number of people entering or exiting is not equal, the control end 65 determines that the automatic operation area 200 does not reach the safe state. For example, when the automatic operation area 200 is ready to be entered, the signal received by the control terminal 65 is an open state signal of the automatic door lock 1 and/or the manual door lock 2, and lacks a first reset signal and a second reset signal, so that it is determined that the automatic operation area 200 does not reach a safe state, and a shutdown signal of the machine device 202 is generated, so that the machine device 202 is shutdown.

In at least one embodiment of the present application, the control terminal 65 may also perform a self-test. For example, when abnormal conditions such as failure of control of the machine device 202 (i.e. invalid control of the machine device 202, unable to change the state of the machine device 202), communication errors and the like are detected, alarm prompt can be performed through the alarm 64 and the man-machine interaction screen 62.

The control terminal 65 may also preset a canonical operation of entering and exiting the automation work area 200. For example, in the present embodiment, the entered specification operation is: and inputting access control permission, unlocking the automatic door lock 1, unlocking the manual door lock 2, and closing the door after door opening. In this process, the control terminal 65 may sequentially receive the access right, the open state signal of the automatic door lock 1, and the open state signal of the manual door lock 2. The control end 65 records the current entry of the operator based on the access right after receiving the opening state signal of the manual door lock 2. It will be appreciated that the control end 65 may control the locking of the automatic door lock 1 after closing the door.

It will be appreciated that when a plurality of persons enter the automation work area 200, one person may enter the automation work area 200 according to the above standard operation, and since the manual door lock 2 is unlocked, the rest person may directly input the access right to unlock the automatic door lock 1, i.e. may open the door to enter the automation work area 200.

The specification operation of evacuation is: the first reset switch 4 is pressed down, an unlocking instruction is issued within the reset delay time of the first reset signal, the automatic door lock 1 is unlocked, the door is closed after the door is opened, the automatic door lock 1 is locked again, the manual door lock 2 is locked, the second reset switch 5 is pressed down, and the access control permission is input within the reset delay time of the second reset signal. In this process, the control end 65 may sequentially receive a first reset signal, an open state signal of the automatic door lock 1, a locking state signal of the manual door lock 2, a second reset signal, and an access right. It will be appreciated that when the control terminal 65 receives a first reset signal, it indicates that the door 201 is in an unlocked state. When the control terminal 65 receives a second reset signal, it indicates that the door 201 is in a locked state. After receiving the access control permission, the control end 65 records the current evacuation of the operator based on the access control permission.

It will be appreciated that when a plurality of persons all evacuate the automation work area 200, one of the persons may operate to open the door to leave the automation work area 200 according to the above specification, and then continue evacuating according to the above specification, namely: the door is closed, the automatic door lock 1 is locked again, the manual door lock 2 is locked, the second reset switch 5 is pressed, and all people input access rights within the reset delay time of the second reset signal.

In addition, the control end 65 may preset a standard operation of withdrawing the automation work area 200 in advance halfway. For example, in the present embodiment, the specification operation of the midway advanced evacuation is: and issuing an unlocking instruction, unlocking the automatic door lock 1, opening the door, closing the door after leaving the door, re-locking the automatic door lock 1, finally pressing the second reset switch 5, and inputting the access control permission in the reset delay time of the second reset signal.

Compared with the standard operation of evacuation, the two operations of pressing the first reset switch 4 and locking the manual door lock 2 are not needed in advance in the process of evacuation, which mainly considers that when the evacuation is needed in advance, people still work in the automatic operation area 200, and the automatic operation area 200 cannot reach a safe state due to the lack of the first reset signal generated by the first reset switch 4, so that the machine equipment 202 is always kept in a closed state, and the manual door lock 2 is kept open, so that the locking of the operators in the automatic operation area 200 can be avoided, and the personal safety of the operators in the automatic operation area 200 can be ensured.

Referring to fig. 2 again, in this embodiment, to facilitate fault location, wiring and secondary development, the control terminal 65 includes a first control terminal 651 and a second control terminal 652. The first control end 651 and the second control end 652 can be connected through the RS485 cable 7, so that good communication stability can be maintained.

Referring to fig. 3 to 4, the first control terminal 651 and the second control terminal 652 are each provided with a plurality of contacts 650. Wherein, a part of the contacts 650 of the first control end 651 are respectively connected with the automatic door lock 1, the sensor 3, the first reset switch 4, the second reset switch 5, the entrance guard authority reader-writer 61, the man-machine interaction screen 62, the unlocking switch 63 and the second control end 652, and a part of the contacts 650 of the second control end 652 are respectively connected with the alarm 64 and the machine equipment 202.

It can be appreciated that the first control end 651 serves as a control core, and may directly receive information from the automatic door lock 1, the sensor 3, the first reset switch 4, the second reset switch 5, the entrance guard permission reader 61 and the unlocking switch 63, indirectly receive information of the machine device 202 through the second control end 652, and further implement real-time checking of states of the automatic door lock 1, the manual door lock 2, the first reset switch 4, the second reset switch 5 and the machine device 202, direct control of the automatic door lock 1, the entrance guard permission reader 61, the man-machine interaction screen 62, and indirect control of the machine device 202 and the alarm 64 through the second control end 652.

The first control end 651 is provided with a control software system, and can analyze and process the received information. For example, the control software system may generate an authorized entry record for the worker and perform a person entry registration to count the number of people entered and exited; an authorized evacuation record of the operator and a log-out of the entry registration at the previous entry can be generated to count the number of people entering and exiting; whether the unlocking command and the access right fail overtime or not can be judged, and whether the automatic operation area 200 reaches a safe state or not is judged; corresponding voice alarm content and the like can be generated according to different conditions.

In practical applications, the function allocation of the control software system may be performed by different program modules, i.e. the control software system is divided into different program modules, to perform all or part of the functions described above, as required.

Referring to fig. 5, the present application further provides a method for monitoring safety operation of the above access control system 100, which includes the following steps:

s1, receiving the access right, a state signal of the lock piece 10 (comprising a state signal of the automatic door lock 1 and a state signal of the manual door lock 2), and/or a first reset signal generated by the first reset switch 4 and a second reset signal generated by the second reset switch 5.

S2, when the access right is received, recording and counting the number of people entering and exiting the automatic operation area 200 by the operator based on the access right.

When the operator enters the automation operation area 200, since the access right is input first, the automatic door lock 1 is unlocked, then the manual door lock 2 is unlocked, then the door is opened, and finally the door is closed and the automatic door lock 1 is locked, in step S1 of the present application, the access control system 100 receives the access right, the status signal of the automatic door lock 1 and the status signal of the manual door lock 2.

Since the access right is first input, when the access right is received by the access control system 100, the automatic door lock 1 and the manual door lock 2 are both in the locked state, so that the automatic door lock 1 and the manual door lock 2 need to be opened first to regenerate the entry record. Therefore, when the operator enters the automation working area 200, referring to fig. 6, step S1 may include the following steps:

s11a, after receiving the access control authority, judging whether the access control authority is valid or not and whether the group to which the access control authority belongs is the same as the group to which the automatic operation area 200 to be entered belongs or not;

S12a, if the access control permission is invalid or the groups are different, the automatic door lock 1 cannot be opened and the entering personnel cannot be recorded, and the access control permission which is valid and has the same group needs to be continuously waited for being received;

s13a, if the access control rights are effective and the groups are the same, judging whether the access control rights contain unlocking rights and personnel access recording rights;

s14a, if the access control permission does not contain unlocking permission and personnel access recording permission, prompting that the access control permission is low, and the automatic door lock 1 cannot be opened and access personnel cannot be recorded, and continuing to wait for receiving the access control permission containing the unlocking permission and the personnel access recording permission;

s15a, if the access control authority contains unlocking authority and personnel access recording authority, then:

s152, controlling the automatic door lock 1 to be opened based on unlocking authority and receiving an opening state signal of the automatic door lock 1;

s154, controlling the machine equipment 202 to be shut down;

s156, after the machine device 202 is turned off, the open state signal of the manual door lock 2 is received. And then in step S2, generating an entry record corresponding to the operator and performing personnel entry registration based on the personnel entry and exit record authority.

Wherein, before step S152, step S151 may further include:

judging whether the automatic door lock 1 is in a locking state, and controlling the automatic door lock 1 to be opened based on unlocking authority when the automatic door lock 1 is locked, so as to receive an opening state signal of the automatic door lock 1.

Prior to step S156, step S155 may be further included:

judging whether the machine equipment 202 is shut down, if so, receiving an opening state signal of the manual door lock 2; if not, it is indicated that the control fails and the machine 202 needs to be controlled again to shut down.

In step S1 of the present application, when the operator withdraws, since the first reset switch 4 is pressed first, an unlocking command is issued within a reset delay time period of the first reset signal, the automatic door lock 1 is unlocked, the door is closed after the door is opened, the automatic door lock 1 is locked again, the manual door lock 2 is locked, the second reset switch 5 is pressed, and the entrance guard right is input within a reset delay time period of the second reset signal, so that the entrance guard system 100 receives the first reset signal, the unlocking command, the state signal of the automatic door lock 1, the state signal of the manual door lock 2, the second reset signal and the entrance guard right.

In addition, in other cases, for example, when part of the operators withdraw in advance, an unlocking command is directly issued, the automatic door lock 1 is unlocked, then the door is closed after the door is opened and separated, the automatic door lock 1 is locked again, and finally the second reset switch 5 is pressed down, so that the access control permission is input within the reset delay time of the second reset signal. Accordingly, in step S1, the door control system 100 receives the unlock command, the status signal of the automatic door lock 1, the status signal of the manual door lock 2, the second reset signal, and the door control right.

Since the unlocking instruction is issued to control the unlocking of the automatic door lock 1 during the evacuation, the unlocking of the automatic door lock 1 based on the unlocking authority is not required. Therefore, when the operator withdraws from the automation work area 200, referring to fig. 8, step S1 may include the steps of:

s11b, after receiving the access right, judging whether the access right is valid or not and whether the group to which the access right belongs is the same as the group to which the automatic operation area 200 already enters or not;

s12b, if the access control authorities are invalid or the groups are different, the record of the evacuated personnel cannot be opened, and the access control authorities which are valid and have the same group need to be continuously waited for receiving;

S13b, if the access control authority is effective and the groups are the same, judging whether the operator has entering registration when entering;

s14b, if the operator does not enter the entrance registration, the evacuator cannot be recorded, and the operator needs to continue waiting for receiving the entrance guard permission of the entered registration;

and S15b, if the operator has the entry registration when entering, indicating that the operator has the personnel entry and exit record authority, and then in step S2, generating an evacuation record corresponding to the operator based on the personnel entry and exit record authority and logging out the entry registration when entering of the operator.

In at least one embodiment of the present application, the step S2 may further include the steps of:

the entry record or the evacuation record of the operator is displayed through the man-machine interaction screen 62. Referring to fig. 7 and 9 to 11, the entry record or the evacuation record may be displayed with a user name, a job number, a group, a time of entry/evacuation, or the like of the operator.

And S3, when the first reset signal, the locking state signal of the automatic door lock 1, the locking state signal of the manual door lock 2 and the second reset signal are sequentially received, and the counted number of people entering and exiting is equal, the automatic operation area 200 is judged to reach a safe state, and a starting signal of the machine equipment 202 is further generated to control the machine equipment 202 to start.

Referring to fig. 8, step S3 may include the following steps:

s31, after sequentially receiving the first reset signal, the locking state signal of the automatic door lock 1, the locking state signal of the manual door lock 2 and the second reset signal, judging whether all the entry registrations of the operators are cancelled:

s32, if yes, the statistical number of people entering and exiting at the moment is equal, so that the automatic operation area 200 is judged to be in a safe state;

s33, if not, the statistical number of people entering and exiting at the moment is not equal, and the people receiving the permission of people entering and exiting is required to be continuously waited to log out and enter the registration.

In the above process, the safety operation monitoring method may further include the steps of:

when the received signal lacks any one of the first reset signal, the locking state signal of the locking member 10 and the second reset signal, or the receiving sequence of the first reset signal, the locking state signal of the locking member 10 and the second reset signal is changed, or the counted number of people entering and exiting is unequal, it is determined that the automation working area 200 does not reach the safe state, and then a shutdown signal of the machine equipment 202 is generated to control the machine equipment 202 to be shutdown.

For example, in step S3, when the entry registration of the operator is not all logged out, that is, the number of counted entry and exit persons is not equal, it is determined that the automation work area 200 does not reach the safe state, so that the machine 202 is controlled to be turned off.

In step S1, since the access right is input first when the operator enters, the automatic door lock 1 is unlocked, then the manual door lock 2 is unlocked, then the door is opened, and finally the door is closed, the received signal is the open state signal of the automatic door lock 1 and/or the manual door lock 2, and the first reset signal and the second reset signal are absent, so in step S154, it is determined that the automatic operation area 200 does not reach the safe state, and the machine equipment 202 is controlled to be closed (see fig. 6).

In addition, in other cases, for example, in step S1, when some of the operators withdraw in advance, an unlocking command is directly issued, the automatic door lock 1 is unlocked, then the door is opened and removed, and then the door is closed, the automatic door lock 1 is locked again, finally the second reset switch 5 is pressed, and the access control permission is input within the reset delay time of the second reset signal. Accordingly, the received signal lacks the first reset signal and the lock state signal of the manual door lock 2, so that it is determined that the automation work area 200 does not reach a safe state, and thus the machine 202 is controlled to be shut down.

In the above process, the method may further include the steps of:

the states of the automatic door lock 1, the manual door lock 2 and the machine device 202 are displayed in real time through a man-machine interaction screen 62, and the counted number of people entering and exiting is displayed in real time (see fig. 7, 9 to 11).

For example, when the operator enters the automated operation area 200 of unmanned operation, before step S1, please refer to fig. 7 (I), since no person enters the automated operation area 200 at this time, the automated operation area 200 is displayed as a machine operation mode by the man-machine interaction screen 62, the machine device 202 is in a working state, the automatic door lock 1 and the manual door lock 2 are both in a locked state, the number of entering persons is 0 (corresponding to "in: 0" in fig. 7 (I)), and the number of withdrawing persons is 0 (corresponding to "out: 0" in fig. 7 (I)).

In step S152, referring to fig. 7 (II), since the open state signal of the automatic door lock 1 is received, fig. 7 (II) is different from fig. 7 (I) in that: in fig. 7 (II), the automated working area 200 is in a manual working mode, the automatic door lock 1 is in an open state, and the machine 202 is in a closed state.

In step S2, referring to fig. 7 (III), since the open state signal of the manual door lock 2 is received and the entry and exit record and the entry and exit statistics are performed, fig. 7 (III) is different from fig. 7 (II) in that: the manual door lock 2 shown in fig. 7 (III) is in an open state, and the number of persons entering is 1 (corresponding to "entering: 1" in fig. 7 (III)) and the entry record (corresponding to "name, time, job number, group" in fig. 7 (III)) is displayed through the human-computer interaction screen 62.

After closing the door and controlling the locking of the automatic door lock 1, please refer to fig. 7 (IV), since the locking status signal of the automatic door lock 1 is received, fig. 7 (IV) is different from fig. 7 (III): the automatic door lock 1 shown in fig. 7 (IV) is in a locked state.

For example, when there are only 1 operator in the automation work area 200, the operator withdraws from the automation work area 200, before step S1, please refer to fig. 9 (I), the automation work area 200 is displayed as a manual work mode through the man-machine interaction screen 62, the machine device 202 is in a closed state, the automatic door lock 1 is in a locked state, the manual door lock 2 is in an opened state, the number of entrances is 1 (corresponding to "in: 1" in fig. 9 (I)), the number of evacuees is 0 (corresponding to "out: 0" in fig. 9 (I)), and the entry record (corresponding to "name, time, job number, group" in fig. 9 (I)) is displayed.

After receiving the open state signal of the automatic door lock 1 in step S1, the display interface of the man-machine interaction screen 62 is shown in fig. 9 (II). Fig. 9 (II) differs from fig. 9 (I) in that: the automatic door lock 1 is displayed in an opened state through a man-machine interaction screen 62.

After receiving the locking status signals of the automatic door lock 1 and the manual door lock 2 in step S1, the display interface of the man-machine interaction screen 62 is shown in fig. 9 (III). Fig. 9 (III) differs from fig. 9 (II) in that: the man-machine interaction screen 62 displays that the automatic door lock 1 and the manual door lock 2 are in a locking state.

In step S2, the display interface of the man-machine interaction screen 62 is shown in fig. 9 (IV). Fig. 9 (IV) differs from fig. 9 (III) in that: the automated job area 200 is displayed in a machine job mode by the man-machine interaction screen 62, the machine device 202 is in an activated state, the number of evacuees is 1 (corresponding to "out: 1" in fig. 9 (IV)), and the evacuation record (corresponding to "name, time, job number, group" in fig. 9 (IV)) is displayed.

For example, when there are 3 operators in the automation work area 200, wherein 1 operator withdraws from the automation work area 200 in advance, before step S1, please refer to fig. 10 (I), the automation work area 200 is displayed as a personnel work mode through the man-machine interaction screen 62, the machine device 202 is in a closed state, the automatic door lock 1 is in a locked state, the manual door lock 2 is in an opened state, the number of entrances is 3 (corresponding to "in: 3" in fig. 10 (I)), the number of evacuees is 0 (corresponding to "out: 0" in fig. 10 (I)), and the entry record of the last entered operator (corresponding to "name, time, job number, group" in fig. 10 (I)) is displayed.

After receiving the open state signal of the automatic door lock 1 in step S1, the display interface of the man-machine interaction screen 62 is shown in fig. 10 (II). Fig. 10 (II) differs from fig. 10 (I) in that: the automatic door lock 1 is displayed in an opened state through a man-machine interaction screen 62.

In step S2, the display interface of the man-machine interaction screen 62 is shown in fig. 10 (III). Fig. 10 (III) differs from fig. 10 (II) in that: the machine 202 is displayed in an activated state by the man-machine interaction screen 62, the automatic door lock 1 is in a locked state, the number of evacuees is 1 (corresponding to "out: 1" in fig. 10 (III)), and the evacuation record (corresponding to "name, time, job number, group" in fig. 10 (III)) is displayed. In the above process, the method may further include the steps of:

s4, when an abnormal situation occurs, for example, the control of the door control system 100 on the machine equipment 202 fails, the door control system 100 is accidentally reset, communication is in error, and the like, alarm prompt is carried out on the abnormal situation. For example, in step S155, when it is determined that the machine device 202 is not shut down, an alarm is given for an abnormal condition that the machine device 202 fails to control (see fig. 6).

It will be appreciated that the above "S4" is only for distinguishing other steps, and the present application does not limit the order of the step S4 in the safety operation monitoring method.

In addition, the method can further comprise the following steps:

when a forced unlocking instruction is received in the abnormal situation, the machine device 202 is controlled to be switched from an open state to a power-off and shut-off state based on the forced unlocking authority in the access authority, and the automatic door lock 1 which is locked is controlled to be opened. In this way, the operator can find out the abnormality of the door control system 100 in time, unlock the manual door lock 2, and open the door to enter the automation operation area 200 to inspect and repair the machine equipment 202.

The above steps may further include:

before receiving the forced unlocking command, please refer to fig. 11 (I), the man-machine interaction screen 62 is used to display that the automatic operation area 200 is in the machine operation mode, the automatic door lock 1 and the manual door lock 2 are both in the locked state, the machine device 202 is in the activated state, and the evacuation record of the last entry and exit (corresponding to "name, time, job number, and group" in fig. 11 (I)) and the number of entries and exits (corresponding to "entry: 1", "exit: 1" in fig. 11 (I)).

After receiving the forced unlocking command and unlocking the automatic door lock 1 and the manual door lock 2, please refer to (II) in fig. 11, the man-machine interaction screen 62 is used to display that the automatic operation area 200 is in a manual operation mode, the automatic door lock 1 and the manual door lock 2 are both in an open state, the machine device 202 is in a closed state, and the evacuation record clearing of last entering and exiting and the number of people entering and exiting displayed by the man-machine interaction screen 62 are controlled to be initially 0 (corresponding to "enter: 0" and "exit: 0" in fig. 11 (II)).

The access control system 100 can automatically record personnel entering and exiting and automatically count the personnel entering and exiting, can judge whether the automatic operation area 200 reaches a safe state, and can control the machine equipment 202 to start only when the access control system 100 reaches the safe state, so that the access control system 100 and the safety operation monitoring method thereof can effectively monitor personnel entering and exiting and controlling the machine equipment 202, and the automatic production safety coefficient is high, thereby being beneficial to guaranteeing the personal safety of operators.

It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present application.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims

1. The access control system is characterized in that the access control system is arranged in an automatic operation area and is connected with machine equipment in the automatic operation area, and operators in the automatic operation area are assigned with corresponding access control rights; the access control system comprises a lock, a first reset switch, a second reset switch and access control equipment, wherein,

The lock piece is used for locking a door of the automatic operation area and is connected with the access control equipment, wherein the lock piece comprises an automatic door lock and a manual door lock, and the lock piece is also used for sending a state signal of the automatic door lock and a state signal of the manual door lock to the access control equipment;

the access control device is used for judging that the automatic operation area reaches a safe state and generating a starting signal of the machine device when the first reset signal, the locking state signal of the automatic door lock, the locking state signal of the manual door lock and the second reset signal are sequentially received and the counted number of people entering and exiting is equal, so that the machine device is started.

2. The door access system of claim 1, wherein the automatic door lock is connected to the door access control device and transmits a status signal of the automatic door lock to the door access control device, and the automatic door lock is controlled by the door access control device;

the lock piece further comprises a sensor, wherein the sensor is used for detecting the state of the manual door lock and generating a state signal of the manual door lock, and the sensor is connected with the access control equipment and sends the state signal of the manual door lock to the access control equipment;

3. The access control system of claim 2, wherein the access control device comprises an access control authority reader, a man-machine interaction screen, an alarm and a control terminal, wherein,

4. The access control system of claim 2, wherein the operators of the automated operation area are assigned corresponding access cards containing access rights, the access cards being divided into user cards and management cards;

5. A security operation monitoring method of the access control system as claimed in any one of claims 1 to 4, comprising:

6. The security operation monitoring method of the access control system according to claim 5, wherein the security operation monitoring method further comprises:

7. The method for monitoring the safe operation of the door control system according to claim 5, wherein in step S1, the door control system receives status signals of the door control right, the automatic door lock and the manual door lock in the lock during the process that the worker enters the automated operation area;

8. The security operation monitoring method of the access control system according to claim 5, wherein the security operation monitoring method further comprises:

9. The security operation monitoring method of the access control system according to claim 5, wherein the security operation monitoring method further comprises: