Bank interworking door carrier power supply and communication method and device

Abstract

The application discloses a bank linkage door carrier power supply and communication method and device, a control host is connected with an inner door control device and an outer door control device of a bank linkage door through two cables, the control host adopts time sequence control to carry out periodic intermittent direct current power supply, the intermittent period between power supply periods is a communication window period, the control host carries out data communication with the inner door control device or the outer door control device through digital signal carrier transmission in the communication window period, and the capacitors in the inner door control device and the outer door control device are charged and stored with energy in the power supply period. The control host adopts unique and innovative time sequence control to carry out periodic intermittent direct current power supply and communication, a separate signal control cable is not arranged, wiring cost and installation and debugging difficulty are reduced, the communication control signal is difficult to be cracked on site, and the security level of the door control system of the bank system is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bank security, in particular to a carrier power supply and communication method and device for bank linkage doors. Background Art

[0002] A bank's cash business area is a cash vault set up by grassroots banks in my country to handle daily cash collection and payment business. The bank's cash business area is a place where anti-tailgating interlocked security doors are mandatory. Anti-tailgating interlocked security doors are equipped with inner and outer doors for security. Both doors cannot be opened simultaneously. The existing anti-tailgating interlocked security door control host uses power cables and signal cables to connect the inner and outer doors respectively. The power cables and signal cables are used for power supply and control respectively.

[0003] At present, this wiring and control method has certain safety risks; the control signal on the separately established signal line adopts high and low level control method, which has the risk of being cracked. The installation and debugging of this wiring and control are also relatively complicated. If the power line and signal line are connected incorrectly, the control system will be damaged; the power line and signal line laid in the same pipe will cause signal interference to the communication signal, and the construction cost of separate laying and wiring is high.

[0004] Secondly, the existing DC carrier communication method adopts a continuous power supply and communication method. The carrier coupling and separation methods and circuits of the communication signal are relatively complex. In addition, the existing DC stable power supply is generally formed by the AC power supply through rectification and voltage stabilization. This inevitably contains some AC ripple in the DC stable quantity. The ripple will interfere with the logical relationship between the carrier communication signal and the digital circuit, affecting its normal operation. Summary of the Invention

[0005] In order to overcome the deficiencies in the prior art, the present invention provides a bank linkage door carrier power supply and communication method and device.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a bank linkage door carrier power supply and communication method, the control host is connected to the inner door control device and the outer door control device of the bank linkage door through two power carrier cables, the control host adopts a timing control method, and periodically alternates intermittent DC power supply and communication. The interval between the two power supply cycles is a communication window period. During the communication window period, the control host transmits communication signals with the inner door control device or the outer door control device through the carrier cable. During the power supply cycle, the energy storage capacitors in the inner door control device and the outer door control device are charged and stored. During the communication window period, the energy storage capacitors in the inner door control device and the outer door control device are discharged to provide power.

[0007] Furthermore, the control host preferably uses a synchronous control method for power supply and communication. In this synchronous control method, both the inner door control device and the outer door control device send data after receiving instructions, rather than actively sending data. This effectively prevents communication signal confusion and greatly improves the security and reliability of communication.

[0008] Furthermore, the communication signal transmitted during the communication window period includes address information and data, and the address information includes address information of a sender and a receiver;

[0009] The specific method and steps for performing data communication during the communication window period are as follows: During the first communication window period, the control host sends a communication signal containing address information and data, which is received by the recipient of the corresponding address; during the second communication window period, the recipient responds to the communication signal to the control host, and the interior door control device or exterior door control device that did not receive the communication signal is in an idle state; during the third communication window period, the communication signal sent by the control host is received by the interior door control device or exterior door control device that was idle during the second communication window period; during the fourth communication window period, the recipient of the previous communication window period responds to the communication signal to the control host; the interior door control device and exterior door control device alternately communicate data with the control host. Alternating communication between the interior and exterior doors facilitates timing control and maintains a relatively short control response time. The power supply cycle and communication window period are millisecond-level unit cycles, and users experience no delay in operation.

[0010] Furthermore, if the control host fails to receive a response from either the inner or outer door control device three times in a row, it determines that the device is in an abnormal state and issues a fault alarm. The communication method of the present invention allows the control host to alternately monitor the status of the inner and outer door control devices and promptly issue a fault alarm, thus achieving an online self-checking function.

[0011] Furthermore, during the communication window period, the communication signal is modulated and demodulated to perform data communication.

[0012] Furthermore, the power cycle is 100ms and the communication window is 10ms. A polling communication cycle is completed within 500ms, and the user's operation control will not experience hysteresis. If the time is too long, hysteresis will occur, affecting the user experience, while if the time is too short, the content integrity of the communication signal will be affected.

[0013] The present invention also discloses a bank linkage door carrier power supply and communication device, comprising a control host, an inner door control device connected to the bank cash business area linkage inner door, and an outer door control device connected to the bank cash business area linkage outer door;

[0014] The control host includes a main control module for timing control of device power supply and communication, a main control power supply module for DC power supply of the device, a sub-control power supply module for intermittent power supply of the inner door control device and the outer door control device, a communication module for modulating and demodulating communication signals, and a timing control module for timing control of the intermittent power supply of the sub-control power supply module. The main control module is respectively connected to the main control power supply module, the communication module, and the timing control module. The timing control module is respectively connected to the sub-control power supply module and the communication module. The main control power supply module is connected to the sub-control power supply module;

[0015] The inner door control device includes an inner door control module for timing control of inner door power supply and communication, an inner door power storage module for energy storage and power supply, an inner door communication module for modulation and demodulation of inner door communication signals, an inner door timing control module for input and output control of the timing of inner door power supply and communication, and an inner door lock motor module for opening and closing the inner door; the inner door control module is respectively connected to the inner door power storage module, the inner door communication module, the inner door timing control module and the inner door lock motor module; the inner door timing control module is respectively connected to the inner door power storage module and the inner door communication module;

[0016] The outer door control device includes an outer door control module for timing control of outer door power supply and communication, an outer door power storage module for energy storage and power supply, an outer door communication module for modulation and demodulation of outer door communication signals, an outer door timing control module for input and output control of the timing of outer door power supply and communication, and an outer door lock motor module for opening and closing the outer door; the outer door control module is respectively connected to the outer door power storage module, the outer door communication module, the outer door timing control module, and the outer door lock motor module; the outer door timing control module is respectively connected to the outer door power storage module and the outer door communication module;

[0017] The timing control module of the control host is connected to the inner door timing control module and the outer door timing control module through two power carrier cables.

[0018] Further preferably, the timing control module is provided with a switching transistor, and the sub-control power supply module is provided with a field effect transistor for timing switch control of intermittent power supply; the inner door timing control module and the outer door timing control module are respectively provided with field effect transistors for input and output switch control of the timing of power supply and communication.

[0019] The timing control module uses switching transistors to control the timing of the sub-control power modules. It has fast switching speed, quick response, precise timing control, safety and reliability, and a long service life. The field-effect transistor switching circuit is used to control the timing of power supply and communication. Its on-state internal resistance is small, while its off-state internal resistance is large, which reduces its own energy consumption, has good anti-interference and stability.

[0020] Furthermore, the main control module, the inner door control module and the outer door control module are respectively provided with a single chip microcomputer for timing control, power supply and communication.

[0021] Furthermore, the communication module, the inner door communication module, and the outer door communication module are respectively provided with a modulation and demodulation circuit for modulating and demodulating the carrier communication signal.

[0022] Furthermore, the inner door power supply energy storage module and the outer door power supply energy storage module are respectively provided with energy storage capacitors and voltage stabilizing circuits.

[0023] Furthermore, the energy storage capacitors built into the inner and outer door power storage modules are 220uF. This meets the power requirements of the linkage door device load during the communication window. If the energy storage capacitors are too small, insufficient power supply to the inner and outer door controllers and excessive power ripple can occur, affecting the normal operation of components. If the energy storage capacitors are too large, system startup time will be prolonged and the device size will increase.

[0024] The beneficial effects of the present invention are as follows: the control host of the present invention is connected to the inner door control device and the outer door control device of the bank's interlocking door through two carrier cables. The control host adopts unique and innovative timing control to perform periodic intermittent DC power supply and communication. The interval between the power supply cycles is the communication window period. During the communication window period, the control host communicates data with the inner door control device or the outer door control device through digital signal carrier transmission. No separate signal control cable is provided, which reduces wiring costs and installation and debugging difficulties. Its communication control signal is difficult to crack on site, and the communication control is safe and reliable, which greatly improves the security level of the door control system of the bank system.

[0025] The present invention adopts two carrier cables for alternate power supply and communication, and does not need to set up a communication signal separation circuit, thus avoiding ripple and harmonic interference and greatly improving reliability.

[0026] The communication method of the present invention controls the host computer to perform online status monitoring on the inner door control device and the outer door control device in an alternating cycle and to issue a fault alarm in a timely manner.

[0027] The present invention has simple construction and wiring, and the device does not have the technical risk of system damage caused by wiring errors. In particular, for the bank cash business area interlocking door system that must be equipped with interlocking doors according to national standards, the original power cord can be used to carry out technical transformation and upgrading of the system without rewiring; the security level is improved, and the present invention has great practical application value in the field of access control technology of bank financial systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic block diagram of the structure of the device of the present invention;

[0029] Figure 2It is a circuit wiring diagram of the device of the present invention;

[0030] Figure 3 This is a simplified circuit diagram of the control host of the device of the present invention;

[0031] Figure 4 This is a simplified circuit diagram of the inner door control device of the device of the present invention;

[0032] Figure 5 This is a simplified circuit diagram of the outer door control device of the device of the present invention;

[0033] Figure 6 This is a simplified circuit diagram of the main control module of the device of the present invention;

[0034] Figure 7 This is a simplified circuit diagram of the main control power module of the device of the present invention;

[0035] Figure 8 This is a simplified circuit diagram of the sub-controlled power supply module of the device of the present invention;

[0036] Figure 9 is a simplified circuit diagram of the communication module of the device of the present invention;

[0037] Figure 10 It is a simplified circuit diagram of the timing control module of the device of the present invention;

[0038] Figure 11 This is a simplified circuit diagram of the inner door control module of the device of the present invention;

[0039] Figure 12 This is a simplified circuit diagram of the inner door power supply energy storage module of the device of the present invention;

[0040] Figure 13 This is a simplified circuit diagram of the internal door timing control module of the device of the present invention;

[0041] Figure 14 This is a simplified circuit diagram of the inner door communication module of the device of the present invention;

[0042] Figure 15 This is a simplified circuit diagram of the motor module of the inner door lock of the device of the present invention;

[0043] Figure 16 This is a simplified circuit diagram of the outer door control module of the device of the present invention;

[0044] Figure 17 This is a simplified circuit diagram of the external door power supply energy storage module of the device of the present invention;

[0045] Figure 18 This is a simplified circuit diagram of the external door timing control module of the device of the present invention;

[0046] Figure 19 This is a simplified circuit diagram of the external door communication module of the device of the present invention;

[0047] Figure 20 This is a simplified circuit diagram of the motor module of the exterior door lock of the device of the present invention;

[0048] Figure 21 It is a schematic diagram of the carrier communication waveform of the present invention;

[0049] Figure 22 Schematic diagram of the waveform of the communication signal of the present invention;

[0050] Figure 23 Schematic diagram of communication waveform of the control host of the present invention;

[0051] Figure 24 is a schematic diagram of the communication waveform of the inner door control device of the present invention;

[0052] Figure 25 It is a schematic diagram of the communication waveform of the exterior door control device of the present invention.

[0053] Parts and numbers in the picture:

[0054] 1-control host; 2-inner door control device; 3-external door control device; 11-main control module; 12-main control power module; 13-sub-control power module; 14-communication module; 15-timing control module;

[0055] 21-Inner door control module; 22-Inner door power storage module; 23-Inner door communication module; 24-Inner door timing control module; 25-Inner door lock motor module;

[0056] 31-External door control module; 32-External door power storage module; 33-External door communication module; 34-External door timing control module; 35-External door lock motor module. DETAILED DESCRIPTION

[0057] The present invention is further described below with reference to the accompanying drawings and embodiments, but is not intended to limit the present invention. Any technical solution based on the transformation or inference of the present invention falls within the scope of protection of the present invention.

[0058] like Figures 1 to 20 As shown, a carrier power supply and communication device for bank linkage doors includes a control host 1, an inner door control device 2 connected to an inner door linkage with a bank cash business area, and an outer door control device 3 connected to an outer door linkage with a bank cash business area;

[0059] The control host 1 includes a main control module 11 for timing control of device power supply and communication, a main control power supply module 12 for DC power supply of the device, a sub-control power supply module 13 for intermittent power supply to the inner door control device 2 and the outer door control device 3, a communication module 14 for modulating and demodulating communication signals, and a timing control module 15 for timing control of the intermittent power supply of the sub-control power supply module 13. The main control module 11 is respectively connected to the main control power supply module 12, the communication module 14, and the timing control module 15. The timing control module 15 is respectively connected to the sub-control power supply module 13 and the communication module 14. The main control power supply module 12 is connected to the sub-control power supply module 13;

[0060] The inner door control device 2 includes an inner door control module 21 for timing control of inner door power supply and communication, an inner door power storage module 22 for energy storage and power supply, an inner door communication module 23 for modulation and demodulation of inner door communication signals, an inner door timing control module 24 for input and output control of the timing of inner door power supply and communication, and an inner door lock motor module 25 for opening and closing the inner door; the inner door control module 21 is respectively connected to the inner door power storage module 22, the inner door communication module 23, the inner door timing control module 24 and the inner door lock motor module 25; the inner door timing control module 24 is respectively connected to the inner door power storage module 22 and the inner door communication module 23;

[0061] The outer door control device 3 includes an outer door control module 31 for timing control of power supply and communication to the outer door, an outer door power storage module 32 for energy storage and power supply, an outer door communication module 33 for modulation and demodulation of outer door communication signals, an outer door timing control module 34 for input and output control of the timing of power supply and communication to the outer door, and an outer door lock motor module 35 for opening and closing the outer door; the outer door control module 31 is respectively connected to the outer door power storage module 32, the outer door communication module 33, the outer door timing control module 34, and the outer door lock motor module 35; the outer door timing control module 34 is respectively connected to the outer door power storage module 32 and the outer door communication module 33;

[0062] The timing control module 15 of the control host 1 is connected to the inner door timing control module 24 and the outer door timing control module 34 through two power carrier cables.

[0063] The timing control module 15 is equipped with a switching transistor, and the sub-control power supply module 13 is equipped with a field-effect transistor for sequential on / off control of intermittent power supply. The internal gate timing control module 24 and the external gate timing control module 34 are each equipped with a field-effect transistor for input and output switching control of the power supply and communication timing. The timing control module 15 uses a switching transistor to perform sequential on / off control of the sub-control power supply module 13, which features fast switching speed, quick response, precise timing control, safety and reliability, and a long service life. The use of a field-effect transistor switching circuit for sequential on / off control of power supply and communication has low on-state internal resistance and high off-state internal resistance, reducing energy consumption, and providing excellent anti-interference and stability.

[0064] Preferably, the main control module 11, the inner door control module 21, and the outer door control module 31 are each equipped with a single chip microcomputer for timing control, power supply, and communication.

[0065] Preferably, the communication module 14, the inner door communication module 23, and the outer door communication module 33 are respectively provided with a modulation and demodulation circuit for modulating and demodulating the carrier communication signal.

[0066] Preferably, the inner door power supply energy storage module 22 and the outer door power supply energy storage module 32 are respectively provided with energy storage capacitors and voltage stabilizing circuits.

[0067] Preferably, the energy storage capacitors within the inner door power storage module 22 and the outer door power storage module 32 are 220uF capacitors. This meets the power supply requirements of the linkage door device load during the communication window period. If the energy storage capacitor parameters are too small, it will lead to insufficient power supply to the inner door control and outer door controller, excessive power ripple, and other phenomena, affecting the normal operation of components. If the energy storage capacitor parameters are too large, the system startup time will be prolonged and the device size will increase.

[0068] Implementation process: Figures 1 to 25 As shown, the control host 1 is connected to the inner door control device 2 set at the inner door of the banking business warehouse and the outer door control device 3 set at the outer door of the banking business warehouse through two power carrier cables.

[0069] The main control module 11 of the control host 1 controls the sub-control power supply module 13 and the communication module 14 through the timing control module 15, and adopts a timing control method to perform periodic alternating intermittent power supply and communication with the inner door control device 2 set at the inner door of the bank business warehouse and the outer door control device 3 set at the outer door of the bank business warehouse. The interval between the two power supply cycles is the communication window period. During the power supply cycle, the energy storage circuits in the inner door power storage module 22 of the inner door control device 2 and the outer door power storage module 32 of the outer door control device 3 are charged and powered at the same time.

[0070] During the communication window between power cycles, the energy storage circuits in inner door power storage module 22 of inner door control device 2 and outer door power storage module 32 of outer door control device 3 discharge to provide power. In this embodiment, the power cycle is 100ms and the communication window is 10ms.

[0071] The communication process of this embodiment is as follows: Figures 21-25 As shown, the main control module 11 of the control host 1 adopts a timing control mode for power supply and communication, which is a synchronous control mode.

[0072] During the first communication window period, the main control module 11 of the control host 1 sends a communication signal containing address information and data, and the address information contains the sender and receiver addresses; it is received by the inner door communication module 23 of the corresponding address; during the second communication window period, the inner door communication module 23 responds to the communication signal to the main control module 11, and the communication signal also contains address information and data. The outer door control device 3 that has not received the corresponding address is in an idle state; during the third communication window period, the communication signal sent by the main control module 11 of the control host 1 is received by the outer door control device 3 that is in an idle state in the second communication window period, and during the fourth communication window period, the outer door control device 3 responds to the communication signal to the control host 1; the inner door control device 2 and the outer door control device 3 alternately cycle to communicate data with the control host 1 during the communication window period.

[0073] If the control host 1 does not receive a response from the inner door control device 2 or the outer door control device 3 for three consecutive times, it is judged to be an abnormal state and a fault alarm is issued. The control host 1 can perform online status monitoring of the inner door control device 2 and the outer door control device 3 in an alternating cycle to detect faults in a timely manner and issue an alarm.

Claims

1. A bank linkage door carrier power supply and communication method, characterized in that: The control host is connected to the inner door control device and outer door control device of the bank's linkage door through two power carrier cables. The control host adopts a timing control method, periodically alternating intermittent DC power supply and communication. The interval between the two power supply cycles is the communication window period. During the communication window period, the control host communicates with the inner door control device or the outer door control device through the carrier cable to transmit communication signals. During the power supply cycle, the energy storage capacitors in the inner door control device and the outer door control device are charged and stored. During the communication window period, the energy storage capacitors in the inner door control device and the outer door control device are discharged to provide power. The control host adopts a timing control mode for power supply and communication as a synchronous control mode; The communication signal transmitted during the communication window period includes address information and data, wherein the address information includes address information of a sender and a receiver; The specific method and steps for performing data communication during the communication window period are as follows: during the first communication window period, the control host sends a communication signal containing address information and data, which is received by the recipient of the corresponding address; during the second communication window period, the recipient responds to the communication signal to the control host, and the inner door control device or outer door control device that does not receive the communication signal is in an idle state; during the third communication window period, the communication signal sent by the control host is received by the inner door control device or outer door control device that is in an idle state during the second communication window period, and during the fourth communication window period, the recipient of the previous communication window period responds to the communication signal to the control host; the inner door control device and the outer door control device alternately cycle to perform data communication with the control host.

2. A bank linkage door carrier power supply and communication method according to claim 1, characterized in that: When the control host does not receive a response from the inner door control device or the outer door control device for three consecutive times, it is judged to be an abnormal state and a fault alarm is issued.

3. A bank linkage door carrier power supply and communication method according to any one of claims 1 to 2, characterized in that: The power supply period is 100ms, and the communication window period is 10ms.

4. A bank linkage door carrier power supply and communication device, comprising a control host (1), characterized in that: It also includes an inner door control device (2) connected to the inner door of the bank cash business area, and an outer door control device (3) connected to the outer door of the bank cash business area; The control host (1) comprises a main control module (11) for timing control of device power supply and communication, a main control power supply module (12) for direct current power supply of the device, a sub-control power supply module (13) for intermittent power supply of the inner door control device (2) and the outer door control device (3), a communication module (14) for modulating and demodulating communication signals, and a timing control module (15) for timing control of intermittent power supply of the sub-control power supply module (13), wherein the main control module (11) is respectively connected to the main control power supply module (12), the communication module (14), and the timing control module (15), and the timing control module (15) is respectively connected to the sub-control power supply module (13) and the communication module (14), and the main control power supply module (12) is connected to the sub-control power supply module (13); The inner door control device (2) comprises an inner door control module (21) for performing timing control on power supply and communication of the inner door, an inner door power supply and energy storage module (22) for energy storage and power supply, an inner door communication module (23) for modulating and demodulating inner door communication signals, an inner door timing control module (24) for performing input and output control on the timing of power supply and communication of the inner door, and an inner door lock motor module (25) for opening and closing the inner door; the inner door control module (21) is respectively connected to the inner door power supply and energy storage module (22), the inner door communication module (23), the inner door timing control module (24) and the inner door lock motor module (25); the inner door timing control module (24) is respectively connected to the inner door power supply and energy storage module (22) and the inner door communication module (23); The outer door control device (3) comprises an outer door control module (31) for performing timing control of power supply and communication of the outer door, an outer door power supply energy storage module (32) for energy storage and power supply, an outer door communication module (33) for modulating and demodulating outer door communication signals, an outer door timing control module (34) for performing input and output control of the timing of power supply and communication of the outer door, and an outer door lock motor module (35) for opening and closing the outer door; the outer door control module (31) is respectively connected to the outer door power supply energy storage module (32), the outer door communication module (33), the outer door timing control module (34), and the outer door lock motor module (35); the outer door timing control module (34) is respectively connected to the outer door power supply energy storage module (32) and the outer door communication module (33); The timing control module (15) of the control host (1) is connected to the inner door timing control module (24) and the outer door timing control module (34) via two power carrier cables.

5. A bank-linked door carrier power supply and communication device according to claim 4, characterized in that: The timing control module (15) is provided with a switching transistor, and the sub-control power supply module (13) is provided with a field effect transistor for performing timing switching control on the intermittent power supply; The inner door timing control module (24) and the outer door timing control module (34) are respectively provided with field effect transistors for performing input and output switch control on the timing of power supply and communication.

6. A bank-linked door carrier power supply and communication device according to claim 4, characterized in that: The main control module (11), the inner door control module (21), and the outer door control module (31) are respectively provided with a single chip microcomputer.

7. A bank-linked door carrier power supply and communication device according to claim 4, characterized in that: The communication module (14), the inner door communication module (23), and the outer door communication module (33) are respectively provided with a modulation and demodulation circuit.

8. A bank-linked door carrier power supply and communication device according to claim 4, characterized in that: The inner door power supply energy storage module (22) and the outer door power supply energy storage module (32) are respectively provided with an energy storage capacitor and a voltage stabilizing circuit; the energy storage capacitor is a 220uF capacitor.

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