JP4356405B2 - Tsumon management system - Google Patents

Description

  The present invention relates to a gate management system used for gate management of vehicles in a factory, for example.

  Conventionally, in places where many vehicles enter and exit such as entrances and exits of factories, vehicle gate management is performed for security reasons and the like (see Patent Documents 1 to 3 below).

  In the conventional gate management system, a card-like recording medium such as a magnetic card or an IC card in which vehicle data is recorded is prepared, and the card information is read out when entering or leaving, and whether or not this is pre-registered vehicle data. In some cases, gate opening / closing control is performed by determining the above. A conventional general gate management system will be described with reference to FIG. FIG. 8 is a block diagram schematically showing a conventional gate management system.

  In the conventional gate management system, dedicated control units 111 and 121 and speakers 112 and 122 are installed for the vehicle gates (or electric locks) 110 and 120 for entry and exit, respectively. The control units 111 and 121 have the same configuration, and are configured by IC card reader / writers 111A and 121A and control units 111B and 121B that transmit and receive signals to and from the input / output management device 130.

  The entrance / exit management device 130 includes a voice synthesizer board that drives the speakers 112 and 122, a protocol converter for communicating with the control units 111 and 121, and the card information of vehicles that are permitted to enter are registered. Has a registration file. The management computer 140 is connected to the entry / exit management device 130 and mainly records a history of communication between the entry / exit management device 130 and the control units 111 and 121.

  In the conventional gate management system having such a configuration, when passing through the vehicle gates 110 and 120, the control units 111 and 112 read the card information from the IC card presented by the driver and transmit it to the entrance / exit management device 130. . The entry / exit management device 130 collates the transmitted card information with the card information registered in advance in the registration file, and when it is determined that it is registered, opens the vehicle gates 110 and 120, and the speakers 112 and 122. The control unit 111 sends a control signal for recording a predetermined signal for entering or leaving the IC card to the control unit 111 as necessary.

JP 2000-11223 A JP 11-259608 A JP 2002-15298 A JP 2000-47766 A

  However, in the conventional gate management system, the card information of entering and leaving vehicles is all checked by the entrance / exit management device 130. Therefore, when a system error occurs or maintenance is performed, the entire gate management system is There will be a problem that security will not be maintained.

  In addition, since it is necessary to connect all the vehicle gates 110 and 120, the control units 111 and 121, and the speakers 112 and 122 to the entrance / exit management device 130 with a cable, depending on the number of installed gates and the installation distance, cable maintenance is required. In addition, there are problems that the system construction cost such as installation cost is increased and the configuration is complicated.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a gate management system capable of reducing system construction cost and improving security.

  In solving the above problems, the gate management system of the present invention is installed in correspondence with a plurality of gate gate devices, a card-like recording medium recording information necessary for the gate, and the gate gate devices. A plurality of control units that drive and control corresponding gate gate devices based on information read from the card-like recording medium, and a management computer that records gate information transmitted from the plurality of control units. Each of the control units includes a card reader / writer, a storage unit storing card information permitted to pass through the gate, and a drive unit that drives the gate gate device, and at least two of the plurality of control units. Are respectively connected to the management computer via a common communication cable.

  The control unit compares the card information in the card-like recording medium read via the card reader / writer with the card information registered in advance in the storage unit, and if it is determined that it is registered, the control unit controls the driving unit. Send a signal to open the gate gate device. In addition, the control unit sequentially transmits communication information including a communication history with the card-like recording medium, a verification result, a communication time, and the like to the management computer via the communication cable, and the management computer stores the record.

  In the present invention, the control unit installed corresponding to each gate device is configured so as to independently determine whether the gate is permitted or not, so the gate management of all gates can be performed with one entrance / exit management device. Compared with the conventional configuration to be performed, maintainability is improved, and it is possible to prevent a decrease in security when a trouble occurs.

  In the present invention, since each control unit and the management computer are connected via a common communication cable, it is possible to reduce the installation cost and maintenance burden of the communication cable, and to construct an inexpensive gate management system. it can.

  The gate gate device is not limited to a gate device installed outdoors for vehicles and pedestrians, but also includes a locked door in an indoor room or a department where a general person is restricted from entering.

  As the card-like recording medium, any recording medium in which card information that can identify whether or not the gate is allowed is stored, and a magnetic card, a non-contact / contact IC card, and the like correspond to this. The card information includes a vehicle number, an employee number, a visitor number, and the like.

  Next, in the case where another control unit that is not connected to the communication cable among a plurality of control units is installed at a distance from the management computer, wireless communication is performed with respect to the management computer. A configuration in which the wireless communication apparatus is provided in the part of the control units is preferable. Thereby, it is possible to avoid an increase in cable installation cost, signal transmission delay, and the like due to an increase in the laying length of the communication cable.

  Furthermore, there is a possibility that data transmitted from a plurality of control units to the management computer collide due to sharing of the communication cable. For this reason, each control unit is provided with detection means for detecting the use state of the communication cable, and at the time of data transmission, the detection means confirms that the communication cable is not used, and declares the use of the communication cable. It is preferable that the data is transmitted as described above.

  On the other hand, the other gate management system of the present invention includes a plurality of gate gate devices, a card-like recording medium that records information necessary for the gate, and a card-like recording device installed corresponding to each gate gate device. A plurality of control units that drive and control corresponding gate devices based on information read from the recording medium, and a management computer that records gate information transmitted from the plurality of control units. Each has a card reader / writer, a storage unit storing card information permitted to pass through, and a drive unit that drives the gate unit, and each of the plurality of control units is connected to the management computer. And connected by radio.

  As a result, the maintainability is improved as compared with the conventional configuration in which the gate management of all the gates is managed by one entry / exit management device, and the security can be prevented from being lowered when a trouble occurs. Moreover, the installation cost and maintenance burden of the communication cable can be reduced, and an inexpensive gate management system can be constructed.

  As described above, according to the gateway management system of the present invention, the card information is collated in each control unit, and the communication cable with the management computer is shared by a plurality of control units. Therefore, system construction cost and maintenance cost can be reduced and security can be ensured.

  In addition, according to another gate management system of the present invention, since the card information is collated in each control unit and the management computer and each control unit are connected wirelessly, System construction cost and maintenance cost can be reduced and security can be ensured.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a system configuration diagram of a gate management system according to the first embodiment of the present invention. In this embodiment, a gate management system including two vehicle gates 11 and 21 for entrance and exit will be described as an example.

  The gate management system according to the present embodiment includes an entrance vehicle gate 11, a control unit 12 for the vehicle gate 11, an exit vehicle gate 21, a control unit 22 for the vehicle gate 21, and a management computer 10. ing. The control units 12 and 22 are installed in the vicinity of the vehicle gates 21 and 22, respectively.

  FIG. 2 shows the internal configuration of the control units 12 and 22. The control units 12 and 22 have the same configuration, and are a CPU unit 31, a card reader / writer 32, a storage unit 33, a gate drive unit 35, a voice synthesis unit 36, an input / output unit 34, and a protocol converter 37 (FIG. 1). , A power switch 41, an LCD panel 42, a clock IC 43, a serial interface 44, and the like.

  The CPU unit 31 controls the entire control unit 12 (22). In the present embodiment, a card reader / writer for reading and writing card information with respect to a non-contact IC card is applied to the card reader / writer 32.

  The storage unit 33 stores (registers) card information for which the gate is permitted, and is configured by a non-volatile memory such as an EEPROM. The stored card information includes a vehicle number, employee number (name, department), visitor number, and the like.

  The input / output unit 34 supplies various control signals to the gate drive unit 35 and the speech synthesis unit 36. The gate drive unit 35 opens and closes the vehicle gate 11 (21). In addition, when an electric lock is applied instead of a vehicle gate, locking / unlocking is performed by the gate drive unit. The voice synthesis unit 36 drives the speaker 13 (23). The speakers 13 and 23 issue announcements regarding permission or permission of entrance / exit to the entrance and exit members.

  Further, the power switch 41 supplies power to the control unit 12 (22). The LCD panel 42 is arranged for operation mode and data confirmation. The clock IC 43 calculates the date of entry or departure. The serial interface 44 is for transmitting card information obtained from the card reader / writer 32 to the management computer 10 via the communication cable 15.

  The management computer 10 records the gate information (communication history with the IC card, verification results, gater information, gate date, etc.) transmitted from the control units 12 and 22. In addition, a reception signal for communication information, customer data scheduled to be newly registered in the storage unit 33, and the like are transmitted to the control units 12 and 22.

  As shown in FIG. 1, the control units 12 and 22 are connected to the management computer 10 via a common communication cable 15. That is, the control units 12 and 22 are connected in parallel to the management computer 10.

  Each of the control units 12 and 22 includes a detection unit 38 that detects whether the communication cable 15 is in use. The detection unit 38 electrically detects whether or not the communication cable 15 is declared to be used by another control unit. Then, data is transmitted to the management computer 10 based on the output of the detection unit 38, and at the time of data transmission, the detection unit 38 confirms that the communication cable 15 is unused. Data is transmitted after the use of the communication cable 15 is declared.

  This is to prevent data from colliding in the common communication cable 15 when a plurality of control units transmit data to the management computer 10 at the same time, so that data transmission to the management computer 10 cannot be performed properly. And detecting the use state of the communication cable 15 in advance at the time of data transmission, determining that the communication cable 15 is not being used, and declaring the use of the communication cable by the control unit. Only the control unit transmits data in a state where data transmission by the control unit is restricted.

  FIG. 3 is a block diagram illustrating a configuration example of a signal transmission / reception unit in the control unit 12. The configuration on the control unit 22 side is also the same.

  In FIG. 3, “T” is transmission data, “R” is reception data, “SEL1” is a transmission / reception switching signal, “SEL2” is a flag control signal indicating a data line (line) usage declaration, “A / “N” is a detection signal of the use state of the communication cable 15 (the presence or absence of a flag).

  The transmission / reception switching signal SEL1 indicates the data transmission mode when it is at the H (High) level (level “1”), and indicates the data reception mode when it is at the L (Low) level (level “0”). The control signal SEL2 declares the use of the data line at the H level (level “1”) (flag ON), and cancels the declaration at the L level (level “0”) (flag OFF). The detection signal A / N indicates that it is in use when it is at the H level (level “1”), and indicates that it is not used when it is at the L level (level “0”). U1 is a transmission circuit, U2 is a reception circuit, U3 is a flag generation circuit, U4 is a flag detection circuit, and corresponds to the detection unit 38 described above.

  Next, the operation of the gate management system of the present embodiment configured as described above will be described.

  When passing through the vehicle gates 11, 21, the driver holds the IC card over the card reader / writer 32 of the control units 12, 22 near the vehicle gates 11, 21. The control units 12 and 22 collate the card information read by the reader / writer 32 with the card information stored in the storage unit 33, and when the read card information matches the information registered in the storage unit 33. The vehicle gate devices 11 and 21 are opened, and the speakers 13 and 23 are driven to issue an announcement prompting entry. When the card information read by the card reader / writer 32 is not registered in the storage unit 33, an announcement for rejecting entry is issued.

  Each time the vehicle passes through the vehicle gates 11, 21, the control units 12, 22 transmit various gate information such as vehicle data and gate time of the vehicle via the serial interface 44 and the communication cable 15. Sequentially send to When the management computer 10 properly receives the gateway information transmitted from the control units 12 and 22, it records this and transmits a predetermined reception signal to the corresponding control units 12 and 22 as necessary.

  4 to 6 show the transmission / reception flow and timing charts of the control units 12 and 22 for the management computer 10, respectively.

  As shown in FIGS. 4 and 6, when transmitting the gateway information from one control unit 12 to the management computer 10, the detection unit 38 (detection circuit U4) detects the use state of the communication cable 15 (step S11). . The use state of the communication cable 15 is detected based on the presence or absence of a flag issued by another control unit.

  If the flag of the other unit is not detected (when A / N is at L level), the control unit 12 sets the transmission / reception switching signal SEL1 to H level and a control signal to declare the use of the communication cable 15 SEL2 is set to H level. On the other hand, if the flag of the other unit is detected (when A / N is at the H level), the process waits until the flag disappears (step S12).

  Next, the control unit 12 transmits the acquired gateway information to the management computer 10 via the transmission circuit U1 (step S13). Since the communication cable 15 is declared to be used by the control unit 12, the transmission operation by the other control unit 22 is restricted. Thereby, in the communication cable 15, mixing of transmission data from a plurality of control units is avoided, so that collision of transmission data is prevented.

  After the data transmission, the transmission / reception switching signal SEL1 is returned to the L level to switch from the data transmission mode to the reception mode (step S14). When the control unit 12 requests the management computer 10 to return a reception signal, the control unit 12 receives the request response (reception signal) (steps S15 and S16). Thereby, it is detected that the transmission data is properly received by the management computer 10, and the subsequent processing is executed.

  Then, after receiving the received signal, the control signal SEL2 is returned to the L level, and the use declaration of the communication cable 15 is canceled (step S17). In the case where no response of the received signal is requested to the management computer 10, control is performed to return the control signal SEL2 to L level after data transmission.

  In the present embodiment, the transmission / reception switching signal SEL1 is switched and controlled after data transmission, so that a predetermined reception signal can be received from the management computer 10, and transmission and reception signals of gateway information can be performed with a single cable usage declaration. To complete the reception.

  On the other hand, for example, when newly-registered visitor data to be registered is registered from the management computer 10 to the control units 12 and 22, each control is performed through a reception flow as shown in FIGS. The units 12 and 22 receive transmission data from the management computer 10.

  In this case, the detection signal A / N of the detection unit 38 of each of the control units 12 and 22 becomes H level due to the declaration of the use of the communication cable 15 by the management computer 10 (step S21). And the transmission data from the management computer 10 are received via the receiving circuit U2 (step S22).

  The above control can be applied not only to communication between the management computer 10 and the control units 12 and 22 but also to communication between the control units 12 and 22. For example, the gate information of one vehicle gate is shared by multiple control units, or the gate information obtained at the entrance gate is sent to the control unit of the exit gate, etc. It is also possible to achieve high functionality.

  As described above, according to the gate system of the present embodiment, the storage unit 33 that stores card information permitting the gate to the control units 12 and 22 installed for each of the vehicle gates 11 and 21. Since each of the control units 12 and 22 can check the card information, each control unit 12 and 22 can independently determine whether the gate is permitted or not. As a result, the maintainability is improved as compared with the conventional configuration in which the gate management of all the gates is managed by one entry / exit management device, and the security can be prevented from being lowered when a trouble occurs.

  Further, according to the present embodiment, since the control units 12 and 22 and the management computer 10 are connected via the common communication cable 15, the installation cost and maintenance burden of the communication cable 15 can be reduced, and A gate management system can be constructed at low cost.

  Furthermore, according to the present embodiment, data sharing is possible using the same line (communication cable 15) when a plurality of control units 12 and 22 operating independently are required, and the communication cable 15 Since measures are taken to effectively avoid collision of transmission data from the plurality of control units 12 and 22 that may occur as a result of sharing, the gateway information can be properly transmitted to the management computer 10.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. In the figure, portions corresponding to those of the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.

  In this embodiment, in addition to the configuration of the first embodiment described above, the electric lock gate A and the electric lock gate B installed at the other two entrances are managed by the common management computer 10. A configuration example is shown.

  The electric lock gates 50A and 50B are mainly installed at entrances and exits (for example, the west gate and the east gate) where employees and visitors can walk on foot, and each has an entry control unit 51 and 61 and an exit control unit 52, respectively. 62 is provided, and the passerby is configured to hold the IC card over a dedicated control unit at the time of entry and exit. These control units 51, 52, 61, 62 have the same configuration as the control units 12, 22 for the vehicle gates 11, 21, respectively, and a storage unit 33 (FIG. 1).

  The control units 12 and 22 of the vehicle gates 11 and 21 are connected to the management computer 10 via a common communication cable 15 and a protocol converter 10A.

  On the other hand, each of the electric lock gates 50A and 50B is installed at a distance from the security room where the management computer 10 is placed as compared to the vehicle gates 11 and 21. Therefore, in the present embodiment, the wireless modem units 53 and 63 are provided so that communication between the control units 51, 52, 61 and 62 of the electric lock gates 50A and 50B and the management computer 10 is performed wirelessly. Each is provided.

  Each of the wireless modem units 53 and 63 includes a wireless modem and a protocol converter necessary for wireless communication. The gateway information transmitted from each of the wireless modem units 53 and 63 is connected to the wireless modem 10B of the management computer 10 via the wireless modem relay station (access point) 70.

  In the present embodiment configured as described above, the gate opening / closing control of the vehicle gates 11 and 21 and the electric lock gates 50A and 50B is controlled by the control units 12, 22, 51, 52, 61 and 62, respectively. Thus, each gate device 11, 21, 50A, 50B can perform independent gate management, and the same effect as in the first embodiment can be obtained.

  In addition, according to the present embodiment, since the gate information of the electric lock gates 50A and 50B is configured to be transmitted wirelessly to the management computer 10, the cable installation cost is reduced and the system configuration is simplified. It becomes possible to plan.

  As mentioned above, although each embodiment of this invention was described, of course, this invention is not limited to these, A various deformation | transformation is possible based on the technical idea of this invention.

  For example, in the first embodiment described above, an example in which two vehicle gates and control units are installed has been described. However, the present invention is not limited to this, and three or more vehicle gates and control units may be installed. Similarly, in the second embodiment described above, the number of vehicle gates and electric lock gates is not limited to two, and it is of course possible to increase these numbers. One control unit may be assigned to the lock gate.

  In the first and second embodiments described above, the control units 12 and 22 are connected to the management computer 10 via the common communication cable 15. However, instead of this, all the control units are connected. Can be connected to the management computer by wireless communication. As a result, the maintainability is improved as compared with the conventional configuration in which the gate management of all the gates is managed by one entry / exit management device, and the security can be prevented from being lowered when a trouble occurs. Moreover, the installation cost and maintenance burden of the communication cable can be reduced, and an inexpensive gate management system can be constructed.

It is a block diagram of the gate management system by the 1st Embodiment of this invention. 2 is a block diagram showing an internal configuration of control units 12 and 22. FIG. It is a block diagram which shows the example of a collision prevention measure of the transmission data between control units 12 and 22. FIG. It is a flowchart which shows the transmission procedure of the transmission data in control units 12 and 22. It is a flowchart which shows the reception procedure of the reception data in the control units 12 and 22. 4 is a timing chart of data transmission / reception in control units 12 and 22. FIG. It is a block diagram of the gate management system by the 2nd Embodiment of this invention. It is a block diagram of the conventional gate management system.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Management computer, 11, 12 ... Vehicle gate (gate gate device), 12, 22, 51, 52, 61, 62 ... Control unit, 13, 23 ... Speaker, 15 ... Communication cable, 31 ... CPU unit, 32 DESCRIPTION OF SYMBOLS ... Card reader / writer, 33 ... Memory | storage part, 34 ... Input / output unit, 35 ... Gate drive unit, 36 ... Speech synthesis unit, 38 ... Detection part, 41 ... Power switch, 42 ... LCD panel, 44 ... Serial interface, 50A, 50B ... Electric lock gate (gate gate device), 53, 63 ... Wireless modem unit, 70 ... Wireless modem relay station.

Claims (1)

Multiple gate gate devices;
A card reader / writer that reads recorded information from a card-like recording medium that records information necessary for the gate, a storage unit that stores card information that is permitted to pass through, and a drive unit that drives the gate device. The gate device is driven and controlled on the basis of the recorded information read by the card reader and the card information stored in the storage unit. Multiple control units;
A management computer that records communication information including the recording information transmitted from the plurality of control units and permitted to be communicated by the control unit ;
Wired or wireless communication device for communication of the gate information between each control unit and the management computer, and sharing of the gate information between each of the plurality of control units
A tsumon management system.

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