CN215495154U - Novel access control ware and access control system - Google Patents
Novel access control ware and access control system Download PDFInfo
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- CN215495154U CN215495154U CN202121529336.9U CN202121529336U CN215495154U CN 215495154 U CN215495154 U CN 215495154U CN 202121529336 U CN202121529336 U CN 202121529336U CN 215495154 U CN215495154 U CN 215495154U
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- electromagnetic lock
- card reader
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Abstract
The utility model discloses a novel access controller, which comprises a case, and a power supply module, a mainboard and an electromagnetic lock output interface which are arranged in the case, wherein the power supply module is respectively and electrically connected with the mainboard and the electromagnetic lock output interface, the mainboard comprises a DC-DC power supply voltage reduction circuit, a main control chip, a card reader interface, a card reader driving circuit and an electromagnetic lock driving circuit, the DC-DC power supply voltage reduction circuit is respectively connected with the main control chip, the card reader driving circuit is respectively connected with the main control chip and the card reader interface, and the main control chip is connected with the electromagnetic lock driving circuit. An access control system comprises a novel access controller, a card reader and an electromagnetic lock. Through setting up power module, concentrate the power supply to mainboard, card reader and electromagnetic lock to with power module, card reader drive circuit and electromagnetic lock drive circuit integration at single quick-witted incasement, reduced the additional power to the independent power supply of electromagnetic lock, thereby reduce the whole occupation space of access control system in the computer lab.
Description
Technical Field
The utility model relates to the technical field of access control systems, in particular to a novel access control device and an access control system.
Background
The access control system in the data center machine room is an important part in security infrastructure, and the safety of the data center is ensured by managing personnel entering and exiting the data center, particularly the micro-module data center has the characteristics of high modularization and integration level, and meanwhile, the requirement on the space utilization rate is high, so that the occupied space of the access control system in the machine room is required to be reduced, and the space utilization rate of the machine room is improved. The access control system comprises an access control device, a card reader and an electromagnetic lock.
The entrance guard system integration level on the existing market is low, and entrance guard controller's overall dimension is all big to the electromagnetic lock still needs extra independent power supply to supply power, leads to whole entrance guard system occupation space great.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a novel access control ware and access control system to solve access control system and occupy the great problem in computer lab space.
In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a novel entrance guard's controller, includes quick-witted case, and set up in power module, mainboard and electromagnetic lock output interface of quick-witted incasement, power module respectively with the mainboard with electromagnetic lock output interface electricity is connected, including DC-DC power step-down circuit, main control chip, card reader interface, card reader drive circuit and electromagnetic lock drive circuit on the mainboard, DC-DC power step-down circuit connects respectively main control chip, card reader drive circuit connects respectively main control chip with the card reader interface, main control chip connects electromagnetic lock drive circuit.
Furthermore, the power supply module comprises a dual-power switching circuit, the dual-power switching circuit comprises 2 power supply switching modules, an on-off switch element and an input detection control module, the on-off switch element and the input detection control module are arranged corresponding to each power supply switching module, the input detection control module comprises a power supply control chip connected with the on-off switch element, the power supply module is respectively connected with the on-off switch element and the power supply control chip, and when the power supply control chip monitors that high voltage is input, the on-off switch element is controlled to be switched on; and when the power supply control chip monitors that no voltage is input, the on-off switch element is controlled to be switched off.
Furthermore, the card reader driving circuit comprises a wiegand bus, and the wiegand bus is respectively connected with the main control chip and the card reader interface.
Further, electromagnetic lock drive circuit includes darlington drive module and electromagnetic lock relay, darlington drive module connects respectively main control chip with the electromagnetic lock relay.
Furthermore, the mainboard further comprises an exit button interface, and the main control chip is connected with the exit button interface.
Furthermore, the main board further comprises a door sensor input interface, and the door sensor input interface is connected with the main control chip.
Further, still include the network communication module on the mainboard, the network communication module with main control chip connects, the network communication module is used for being connected and carry out data transmission with outside upper infrastructure monitored control system.
Furthermore, the case is a 1U standard case, the left side and the right side of the case are provided with hangers, and the case is installed on an external rack or an external wall surface through the hangers.
An access control system, including above-mentioned arbitrary novel access controller to and card reader and electromagnetic lock, novel access controller passes through card reader interface connection the card reader, novel access controller passes through electromagnetic lock output interface with electromagnetic lock drive circuit connects the electromagnetic lock.
Furthermore, the card reader and the electromagnetic lock are combined into a plurality of groups of control assemblies, 1 group of control assemblies comprises 1 electromagnetic lock and 2 card readers, and the control assemblies are used for controlling 1 door.
The utility model has the beneficial effects that: through setting up power module, concentrate the power supply to mainboard, card reader and electromagnetic lock to with power module, card reader drive circuit and electromagnetic lock drive circuit integration at single quick-witted incasement, reduced the additional power to the independent power supply of electromagnetic lock, thereby reduce the whole occupation space of access control system in the computer lab, and improved novel access control ware's the integrated level, reduced access control system's the installation degree of difficulty and cost.
Drawings
Fig. 1 is a block diagram of a circuit of a novel door access controller according to an embodiment of the present invention;
fig. 2 is a block diagram of a dual power switching circuit of the novel door access controller according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a dual power switching circuit of the novel door access controller according to the embodiment of the utility model.
Description of reference numerals:
10. a power supply module; 11. a power conversion module; 12. an on-off switching element;
13. an input detection control module; 20. a main control chip; 30. a card reader drive circuit;
31. a Wiegand bus; 40. an electromagnetic lock drive circuit; 41. a Darlington drive module;
42. an electromagnetic lock relay; 50. a DC-DC power supply voltage reduction circuit; 60. a communication module;
61. PHY network card chip; 62. an RJ45 network port; 70. a fire alarm input interface;
80. a door magnet input interface; 90. a door-out button interface; 100. an LED indicator light;
110. DC12V output port.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Example one
Referring to fig. 1 to fig. 3, a first embodiment of the present invention is: a novel access controller and an access control system are applied to access management of a data center machine room.
The novel entrance guard controller comprises a case, a power module 10, a mainboard and an electromagnetic lock output interface, wherein the power module 10 is arranged in the case, the power module 10 is respectively connected with the mainboard and the electromagnetic lock output interface, the mainboard comprises a DC-DC power voltage reduction circuit 50, a main control chip (MCU)20, a card reader interface, a card reader driving circuit 30 and an electromagnetic lock driving circuit 40, the DC-DC power voltage reduction circuit 50 is respectively connected with the main control chip 20, the card reader driving circuit 30 is respectively connected with the main control chip 20 and the card reader interface, and the main control chip 20 is connected with the electromagnetic lock driving circuit 40.
The power module 10 converts externally input high voltage into 12V low voltage and supplies power to the motherboard, the card reader and the electromagnetic lock, and the 12V direct current on the motherboard is converted into 5V or 3.3V direct current through the DC-DC voltage reduction circuit and supplies power to the main control chip 20 and each port and chip respectively. When an access card of a user contacts with the card reader, the card reader acquires access card information and transmits the access card information to the main control chip 20 through the card reader driving circuit 30, the main control chip 20 compares the access card information with stored authorization data, if the comparison is successful, the main control chip 20 transmits a working signal to the electromagnetic lock driving circuit 40, and the electromagnetic lock driving circuit 40 drives the electromagnetic lock to open the door.
Through setting up power module 10, concentrate the power supply to mainboard, card reader and electromagnetic lock, and will power module 10, card reader drive circuit 30 and electromagnetic lock drive circuit 40 are integrated at single quick-witted incasement, have reduced the additional power to the independent power supply of electromagnetic lock to reduce the whole occupation space of access control system in the computer lab, and improved novel access control ware's integrated level, reduced access control system's the installation degree of difficulty and cost.
Example two
The second embodiment of the present invention is a further improvement made on the basis of the first embodiment, and is different from the first embodiment in that:
referring to fig. 1 to 3, in this embodiment, the power module 10 includes a dual power switching circuit, the dual power switching circuit includes 2 power conversion modules 11, an on-off switch element 12 and an input detection control module 13, the on-off switch element 12 and the input detection control module 13 are disposed corresponding to each power conversion module 11, the input detection control module 13 includes a power control chip connected to the on-off switch element 12, the power module 10 is respectively connected to the on-off switch element 12 and the power control chip, and when the power control chip monitors that a high voltage is input, the on-off switch element 12 is controlled to be turned on; when the power control chip monitors that no voltage is input, the on-off switch element 12 is controlled to be switched off. In this embodiment, the power module 10 may be an AC-DC power module, or a DC-DC power module, to support an input current of 110V/220V AC and 48V DC.
The on-off switch element 12 is an NMOS transistor, when two power supplies supply power simultaneously, 1 power supply is turned off, and a +12V current is not reversely connected to the output end of the power conversion module 11 with power off through the NMOS transistor. Specifically, the power control chip is LM5050, which corresponds to the identifiers U48 and U50 in fig. 3, respectively, and the pin for detecting voltage output is an identifier 4 pin; the mark 12VA-IN is the input of one power conversion module 11, and the mark 12VB-IN is the input of the other power conversion module 11; the NMOS transistors correspond to the labels U47 and U49 in fig. 3, respectively. In addition, the dual power supply circuit further includes a diode, the anode of the diode is grounded, the cathode of the diode is connected to the input end of the power conversion module 11, the diode specifically corresponds to the identifiers D35 and D36 in fig. 3, when the power is reversely connected, and when the 12V input polarity is reversed, a large current forms a loop through D35 and D36, so that the power module outputs an overcurrent, and protection is started, thereby preventing the chips of U48 and U50 from being damaged.
Therefore, the power module 10 of the novel entrance guard controller can be adapted to a single alternating current/direct current power supply and a double alternating current/direct current power supply, and redundant power supply of a single power supply and a double power supply can be realized.
Preferably, the card reader driving circuit 30 includes a Wiegand (Wiegand) bus 31, and the Wiegand bus 31 is respectively connected to the main control chip 20 and the card reader interface. After the card reader acquires the access control information, the information is transmitted to the main control chip 20 through the wiegand bus 31, and the main control chip 20 acquires the access control card information and compares the access control card information with the stored authorization data. In addition, the card reader interface integrates the wiegand bus 31 and 12V power supply lines for supplying power to the card reader. The wiegand bus 31 is a dedicated data bus for communicating with a card reader for reading data of the access control card, and the card reader can be conveniently and stably butted with the main control chip 20 through the arrangement. In other embodiments, an RS485 bus may be used instead of the wiegand bus.
In this embodiment, the electromagnetic lock driving circuit 40 includes a darlington driving module 41 and an electromagnetic lock relay 42, and the darlington driving module 41 is connected to the main control chip 20 and the electromagnetic lock relay 42, respectively. The comparison of access control information is accomplished to main control chip 20, if the comparison is successful, then to darlington drive module 41 sends working signal, thereby makes darlington drive module 41 switches on electromagnetic lock relay 42, the electromagnetic lock in this embodiment is the normal open type, electromagnetic lock relay 42 breaks at ordinary times, is receiving closed switching on behind darlington drive module 41's the signal to make the electromagnetic lock open the door fast.
Through setting up darlington drive module 41 drives electromagnetic lock relay 42 has the high characteristics of sensitivity, is favorable to improving access control system's the efficiency of opening and shutting.
Optionally, the main board further includes a door button interface 90, the main control chip 20 is connected to the door button interface 90, and the door button interface 90 is connected to an external door button. When the user presses the button of going out, with button signal transmission extremely main control chip 20, main control chip 20 discerns the button signal, to electromagnetic lock drive circuit 40 conveys working signal, electromagnetic lock drive circuit 40 receives the back drive electromagnetic lock door opening of working signal. Through the setting, the user can use the exit button to open the door according to the requirement, and the user experience is favorably improved.
Preferably, the main board further includes a door sensor input interface 80, and the door sensor input interface 80 is connected to the main control chip 20. The door sensor input interface 80 is connected to an external door sensor. The door sensor is used for monitoring the opening and closing state of the door and transmitting the state information to the main control chip 20, and the main control chip 20 sends a signal to the electromagnetic lock driving circuit 40 after acquiring the state information so as to complete the logic and time sequence control of the door control switch and realize the automatic door closing. Through the arrangement, the state of the door can be monitored in real time, and the fault of the access control system and the condition of illegal door opening can be found in time.
Preferably, the main board further includes a network communication module 60, the network communication module 60 is connected to the main control chip 20, and the network communication module 60 is configured to be connected to an external upper infrastructure monitoring system and transmit data. The network communication module 60 includes a PHY network card chip 61 and an RJ45 port 62 connected to each other. Specifically, the RJ45 network port can support 10M/100M ethernet, and communicate using the standard Http protocol. When the upper-layer infrastructure monitoring system is connected with the novel access controller through the communication network port and performs data transmission, the state of the controller can be inquired at any time and the opening and closing of the door can be remotely controlled; and configuration information such as new access card authorization information, holiday and time period control and the like can also be issued. Optionally, the motherboard further comprises a DC12V output port 110, a fire alarm input interface 70, and a plurality of LED indicator lamps 100. The output port 110 of the DC12V is electrically connected to the DC-DC power step-down circuit 50, and can be used to supply power to external devices, which is beneficial to improving user experience. Fire alarm input interface 70 connects respectively the outside fire alarm monitoring facilities of novel access control ware with main control chip 20 works as the fire alarm monitoring facilities monitors the conflagration, to main control chip 20 sends the fire alarm signal, main control chip 20 acquires behind the fire alarm signal electromagnetic lock drive circuit 40 sends work order, makes motor drive circuit 40 control the electromagnetic lock is in normally open state, and the personnel of being convenient for are sparse, guarantee the user safety of fleing. The plurality of LED indicator lamps 100 are connected to the main control chip 20, and are configured to display a power supply, a controller state, an electromagnetic lock switch state, a network state, a command issuing state, and the like, so that a field maintenance worker can quickly locate a current state of the device.
In this embodiment, the chassis is a 1U chassis with standard specification, and may be a sheet metal part, a machined metal part, or a plastic part, and specifically has a width dimension of 440mm, a height dimension of 44.45mm, and a depth dimension of 150 mm; the left side face and the right side face of the case are provided with hanging lugs, and the case is installed on an external rack or an external wall through the hanging lugs. The chassis is also provided with a plurality of heat dissipation vents and detachable port baffles, and the port baffles are used for aligning a plurality of functional interfaces and a power input port and are convenient for switching between a single power module and a double power module.
EXAMPLE III
The third embodiment of the utility model is as follows: an access control system, includes arbitrary in the above-mentioned embodiment novel access controller to and card reader and electromagnetic lock, novel access controller passes through card reader interface connection the card reader, novel access controller passes through electromagnetic lock output interface with electromagnetic lock drive circuit 40 connects the electromagnetic lock. The access control system passes through novel access controller drive the card reader with the electromagnetic lock, in order to realize access control system's access control management.
In this embodiment, access control system still includes 2 electromagnetic doors, every correspond on the electromagnetic door and install 1 electromagnetic lock and 2 the card reader, 2 on the electromagnetic door the electromagnetic lock with the card reader is by 1 novel access control ware is connected and is controlled. Therefore, the access control system can realize double-door bidirectional control of a single access controller, the integration level of the access control system is improved, and the reduction of the equipment cost of the access control system is facilitated.
In summary, according to the novel access controller and the access control system provided by the utility model, the power module is arranged to supply power to the mainboard, the card reader and the electromagnetic lock in a centralized manner, and the power module, the card reader driving circuit and the electromagnetic lock driving circuit are integrated in a single case, so that an additional power supply for independently supplying power to the electromagnetic lock is reduced, the whole occupied space of the access control system in a machine room is reduced, the integration level of the novel access controller is improved, and the installation difficulty and cost of the access control system are reduced. Simultaneously novel access control ware can realize the two-way entrance guard of two doors and go out the access management, is applicable to multiple power supply mode, and in addition, novel access control ware has adopted the quick-witted case of 1U standard specification, realizes the installation standardization, further reduces the volume of whole entrance guard's equipment, also is favorable to the installation and the dismantlement of controller body.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the contents of the present specification and the drawings, or applied to the related technical fields directly or indirectly, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a novel access control ware which characterized in that: the electromagnetic lock power supply comprises a case, and a power supply module, a main board and an electromagnetic lock output interface which are arranged in the case, wherein the power supply module is respectively electrically connected with the main board and the electromagnetic lock output interface, the main board comprises a DC-DC power supply voltage reduction circuit, a main control chip, a card reader interface, a card reader driving circuit and an electromagnetic lock driving circuit, the DC-DC power supply voltage reduction circuit is connected with the main control chip, the card reader driving circuit is respectively connected with the main control chip and the card reader interface, and the main control chip is connected with the electromagnetic lock driving circuit.
2. The novel access controller of claim 1, wherein: the power supply module comprises a dual-power switching circuit, the dual-power switching circuit comprises 2 power conversion modules, an on-off switch element and an input detection control module, the on-off switch element and the input detection control module are arranged corresponding to each power conversion module, the input detection control module comprises a power supply control chip connected with the on-off switch element, the power supply module is respectively connected with the on-off switch element and the power supply control chip, and when the power supply control chip monitors that high voltage is input, the on-off switch element is controlled to be switched on; and when the power supply control chip monitors that no voltage is input, the on-off switch element is controlled to be switched off.
3. The novel access controller of claim 1, wherein: the card reader driving circuit comprises a Wiegand bus, and the Wiegand bus is respectively connected with the main control chip and the card reader interface.
4. The novel access controller of claim 1, wherein: the electromagnetic lock driving circuit comprises a Darlington driving module and an electromagnetic lock relay, and the Darlington driving module is respectively connected with the main control chip and the electromagnetic lock relay.
5. The novel access controller of claim 1, wherein: the mainboard further comprises an exit button interface, and the main control chip is connected with the exit button interface.
6. The novel access controller of claim 1, wherein: the main board further comprises a door sensor input interface, and the door sensor input interface is connected with the main control chip.
7. The novel access controller of claim 1, wherein: the mainboard further comprises a network communication module, the network communication module is connected with the main control chip, and the network communication module is used for being connected with an external upper-layer infrastructure monitoring system and transmitting data.
8. The novel access controller of claim 1, wherein: the case is a case with a standard specification of 1U, hanging lugs are arranged on the left side face and the right side face of the case, and the case is installed on an external rack or an external wall through the hanging lugs.
9. An access control system, comprising: the novel entrance guard controller comprises the novel entrance guard controller according to any one of claims 1 to 8, a card reader and an electromagnetic lock, wherein the novel entrance guard controller is connected with the card reader through the card reader interface, and the novel entrance guard controller is connected with the electromagnetic lock through the electromagnetic lock output interface and the electromagnetic lock driving circuit.
10. The access control system of claim 9, wherein: the card reader and the electromagnetic lock are combined into a plurality of groups of control assemblies, 1 group of control assemblies comprises 1 electromagnetic lock and 2 card readers, and the control assemblies are used for controlling 1 door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121529336.9U CN215495154U (en) | 2021-07-06 | 2021-07-06 | Novel access control ware and access control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121529336.9U CN215495154U (en) | 2021-07-06 | 2021-07-06 | Novel access control ware and access control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215495154U true CN215495154U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121529336.9U Active CN215495154U (en) | 2021-07-06 | 2021-07-06 | Novel access control ware and access control system |
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| CN (1) | CN215495154U (en) |
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2021
- 2021-07-06 CN CN202121529336.9U patent/CN215495154U/en active Active
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