JP2010098535A - Transmission apparatus of security system - Google Patents

Abstract

In a transmitter of a security system, a cover that covers a battery can be easily removed for battery replacement, and a lid that stores a storage unit or the like is fixed so that it cannot be easily opened, and security performance is improved. To increase.
A transmitter includes a casing including a case and a cover, and a battery cover. Since the cover 52 is fixed to the case 51 by the fixing tool 7, the cover 52 cannot be easily opened and the ID data cannot be easily modified, and the security performance is improved. The battery cover 6 includes a first locking piece 6 a and a second locking piece 6 b that are locked to the cover 52. The second locking piece 6b protrudes from the back surface of the battery cover 6, and has a wedge-shaped protrusion 6c protruding toward the first locking piece 6a at the end. When the battery cover 6 is opened, the battery cover 6 bends, the protrusion 6c is disengaged from the cover 52, and the battery cover 6 is easily removed, so that the battery can be easily replaced.
[Selection] Figure 3

Description

  The present invention relates to a transmitter of a security system that transmits and receives ID data.

  Conventionally, in a door locking security system, a security system that opens an electric lock only when ID data from a transmitter owned by a user is received by a receiver and authenticated ID data is received is known. ing. These transmitters include a storage unit that stores ID data, a communication unit that transmits ID data, a control unit that controls the operation of the communication unit, and a battery that supplies power to the control unit and the like. Yes. In these transmitters, the housing containing the storage unit etc. can be opened and closed only with a special tool so that it cannot be opened easily so that the ID data is not altered, but the battery is easy It can be exchanged. For this purpose, there is known a transmitter having a cover provided with a locking portion having a wedge-shaped protrusion so that the cover containing the battery can be attached to and detached from the transmitter housing with one touch. However, in such a transmitter, there is a possibility that the engagement of the locking portion to the housing is too strong to remove the cover, or the engagement is too weak to remove the cover immediately.

  There is also known a wireless transmitter in which a battery, an electric circuit, various switches, and the like are housed in a base body and a lid case, and the base body and the lid case are fixed by an engaging portion (for example, see Patent Document 1). ).

However, in the wireless transmitter as disclosed in Patent Document 1, the tip of the driver must be inserted into the operation hole when the lid case is opened, and the battery cannot be easily replaced.
Japanese Utility Model Publication No. 1-86331

  The present invention solves the above problem, and the cover fixed to the lid so as to cover the battery can be easily removed for battery replacement or the like, and the box body for storing the storage unit and the like is also provided. An object of the present invention is to provide a transmitter of a security system in which a lid covering an opening is fixed so as not to be easily opened, and security performance is improved.

  In order to achieve the above object, the invention of claim 1 is characterized in that in a transmitter of a security system that transmits and receives ID data and opens and closes an electric lock based on the ID data, a storage unit that stores the ID data; A communication unit that transmits the ID data; a control unit that controls operation of the communication unit; a battery that supplies power to the storage unit, the communication unit, and the control unit; and the storage unit, the communication unit, and the control unit. A storage box, a cover that covers the opening of the box, holds the battery on the surface side, and is fixed to the box by a fixing tool; and a cover that covers the battery so as to cover the battery. And a cover made of a flexible material fixed by another fixing tool. The cover protrudes from one end side of the cover and is locked to the lid; and A second protruding from the back and locked to the lid The lid has a first opening for locking the first locking piece and a second opening for locking the second locking piece. The first locking piece, the second locking piece, the first opening, and the second opening constitute the another fixing tool, and the cover is formed on the first opening. The first locking piece that has been locked is rotated as a base point, and the second locking piece is locked to the second opening, thereby being fixed to the lid. The locking piece has a protruding portion that protrudes in a direction in which the first locking piece is located at the tip side and serves as a retaining when the locking piece is locked to the second opening. is there.

  According to a second aspect of the present invention, in the transmitter of the security system according to the first aspect, the lid has a battery box on the surface for fixing the battery, and a waterproof packing is provided between the lid and the cover to surround the battery box. And the peripheral edge of the cover is folded back toward the lid.

  According to the first aspect of the present invention, since the lid that covers the opening of the box that stores the storage unit or the like is fixed to the box by the fixing tool, the lid cannot be easily opened, and the ID data is easily modified. Is prevented. This increases the security performance of the security system. Further, when the cover is removed, by bending the cover, the protrusion of the second locking piece is displaced in the direction away from the second opening and is removed from the second opening, so that the cover can be easily removed. Battery replacement can be performed easily.

  According to the invention of claim 2, since the battery box is surrounded by the waterproof packing, the battery box is prevented from being flooded. In addition, since the periphery of the cover sandwiching the waterproof packing is folded, the rigidity of the cover is improved, and even when the cover is firmly fixed to the lid, the deformation of the cover is reduced, and therefore there is a gap between the cover and the waterproof packing. It is difficult to generate and the water resistance of the transmitter is improved.

(First embodiment)
A security system according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of the security system. The security system 1 includes a transmitter 2 called a tag that is possessed by a user and transmits ID data, a tag reader 3 that reads ID data transmitted from the transmitter 2, and a controller 41 that receives data determined by the tag reader 3. And an electric lock door 42 that is opened and closed by the controller 41. The tag reader 3 reads ID data and determines whether or not the data is authenticated, and is connected to the controller 41 via an interface RS485 or the like. The controller 41 is connected to the computer 43 via an intranet or a dedicated LAN. The electric lock door 42 is installed at the entrance door of a room where only authorized users can enter, and the tag reader 3 is installed near the entrance door. The tag reader 3 determines whether or not the ID data is authenticated data, and transmits the determination result to the controller 41. The controller 41 opens the electric lock door 42 when the determination result is OK, and holds the electric lock door 42 in the locked state when it is NG. The computer 43 manages the locking of the room where entry is restricted, and opens and closes the electric lock door 42 of the room as necessary.

  FIG. 2 shows each configuration of the transmitter 2 and the tag reader 3 in the security system 1 as described above. The transmitter 2 supplies power to the storage unit 21 that stores the ID data, the communication unit 22 that transmits the ID data to the tag reader 3, the control unit 23 that controls the operation of the storage unit 21 and the communication unit 22, and each unit. And a transmission button 25 that is operated by the user to transmit the ID data to the communication unit 22. The communication unit 22 includes an LF band transmission / reception unit 22a that performs LF communication and a low-power transmission ASIC 22b that transmits a low-power wireless signal. The tag reader 3 includes an LF band transmission / reception unit 31 that performs LF communication, a low-power reception unit 32 that receives a low-power radio signal, and a control unit 33 that controls them.

  Communication between the transmitter 2 and the tag reader 3 is performed in the LF communication band (134 kHz band) and the specific low power radio (426 MHz band). When the transmitter 2 enters within about 1.5 m from the tag reader 3, the transmitter 2 in the normal sleep state receives the LF activation signal from the LF band transmission / reception unit 31 of the tag reader 3 and activates it. . The control unit 23 of the activated transmitter 2 transmits the ID data stored in the storage unit 21 from the low power transmission ASIC 22b to the tag reader 3. The tag reader 3 receives the ID data by the low-power receiving unit 32, determines whether the ID data is authenticated data, and transmits the result to the controller 41. Thus, automatic authentication is performed and the electric lock door 42 is opened and closed simply by the user approaching the tag reader 3. When the user presses the transmission button 25, the control unit 23 transmits ID data from the low power transmission ASIC 22b, and manual authentication is performed. Even if the voltage of the battery 24 of the transmitter 2 is lowered, when the transmitter 2 is brought within 30 mm from the tag reader 3, the LF band transceiver 22a of the transmitter 2 and the LF band transceiver 31 of the tag reader 3 are LF. Proximity authentication (passive authentication) is performed by performing two-way communication to transmit / receive ID data.

  3A and 3B show the appearance of the transmitter 2, and FIGS. 4 and 5 show an exploded configuration of the transmitter 2. FIG. The transmitter 2 includes a housing 5 and a battery cover 6 (cover in the claims) fixed to the housing 5. The casing 5 to which the battery cover 6 is fixed has a rectangular parallelepiped shape with a small thickness as a whole. The battery cover 6 can be opened and closed relatively easily with respect to the housing 5. The housing 5 includes a case 51 (a box in the claims) and a cover 52 (a lid in the claims) that covers the opening of the case 51, and the battery cover 6 is fixed to the cover 52. A transmission button 25 is provided on the surface of the case 51. The housing 5 and the battery cover 6 are configured by resin molding, for example.

  The case 51 houses the storage unit 21, the communication unit 22, and the control unit 23. The storage unit 21, the communication unit 22, and the control unit 23 are mounted on the substrate 26. The cover 52 is fixed to the case 51 by the fixing tool 7. The fixing tool 7 is, for example, a screw, and has a triangular recess 72 in the head 71, and the screw cannot be tightened unless it is a dedicated tool having a triangular convex shape. Thereby, the cover 52 is easily opened and the ID data is not altered. The case 51 has a female screw 73 for receiving the fixture 7 on the inner bottom surface, and the cover 52 has a through hole 74 through which the fixture 7 is passed. The fixture 7 passes through the through hole 74 and is fastened to the female screw 73. The cover 52 has a battery box 53 on the upper surface (the surface of the lid). The battery 24 is fixed to the battery box 53, and the battery 24 can be replaced from the upper side of the cover 52. Yes. The battery cover 6 is fixed to the cover 52 so as to cover the battery 24.

  The cover 52 has a first opening 52a for locking the battery cover 6 and a plurality (four in this example) of second openings 52b. The battery cover 6 includes a first locking piece 6a that is inserted into the first opening 52a and a second locking piece 6b that is locked to each second opening 52b. The first locking piece 6 a protrudes from the end of the battery cover 6. The second locking piece 6b protrudes from the back surface of the battery cover 6 toward the cover 52, and has a wedge-shaped protrusion 6c protruding in a direction in which the first locking piece 6a is located. 6c is locked by being inserted into the second opening 52b. This insertion is realized by the material and shape of the battery cover 6 and the second locking piece 6b that can be bent.

  6A shows a state where the battery cover 6 is opened, FIG. 6B shows a state where the battery cover 6 is closed, and FIG. 6C shows a state where the battery cover 6 is bent. The battery cover 6 is opened and closed when the battery 24 is replaced. When the battery cover 6 is closed, as shown in FIG. 6A, the first locking piece 6a of the battery cover 6 is inserted into the first opening 52a, and the first locking piece 6a is the starting point. The battery cover 6 is rotated and pressed in the A direction. Then, the second locking piece 6b is inserted into the second opening 52b and locked. The protrusion 6c prevents the second opening 52b from coming off.

  When the battery cover 6 is opened, as shown in FIG. 6B, the lower end of the battery cover 6 is rotated in the B direction with the first locking piece 6a as a starting point. At this time, as shown in FIG. 6C, since the battery cover 6 is bent in the B direction, the second locking piece 6b is deformed in the C direction, and the protrusion 6c is in contact with the second opening 52b. Unlock. The deformation in the C direction is because the second locking piece 6b away from the first locking piece 6a is larger than the second locking piece 6b close to the first locking piece 6a. The second opening 52b is disengaged in order from the second engaging piece 6b away from the engaging piece 6a, and the battery cover 6 is easily opened.

  In the transmitter 2 according to the present embodiment configured as described above, the case 51 that stores the storage unit 21 and the like and the cover 52 that covers the opening of the case 51 are fixed by the fixing tool 7. The ID data cannot be easily opened, and the ID data is prevented from being easily altered. This increases the security performance of the security system. Further, when the battery cover 6 is removed, by bending the battery cover 6, the protrusion 6c of the second locking piece 6b is displaced in a direction away from the second opening 52b, and from the second opening 52b. Since it comes off, the battery cover 6 can be easily removed, and battery replacement can be performed easily. In addition, since the battery is locked by the four second locking pieces 6b, the battery cover 6 can be firmly fixed to the cover 52, and the locking force is distributed to four locations. Deformation due to the engagement of the battery cover 6 is reduced.

(Second Embodiment)
Next, the transmitter 2 of the security system according to the second embodiment of the present invention will be described with reference to FIGS. FIG. 7A shows an exploded configuration of the transmitter 2, and FIG. 7B shows an appearance of the back side of the battery cover 6. The description of the same configuration as that of the transmitter 2 of the first embodiment is omitted. Unlike the first embodiment, the transmitter 2 according to this embodiment includes waterproof packings 91 and 92 for waterproofing the battery box 53 and the substrate 26. The waterproof packings 91 and 92 are elastic bodies that do not allow water to pass through, and are made of, for example, rubber. The waterproof packing 91 is provided between the battery cover 6 and the cover 52 so as to surround the battery box 53 so as to prevent water from entering the battery box 53, and is pressed against the cover 52 by the battery cover 6. The peripheral edge 61a of the battery cover 6 is folded back toward the cover 52, and the rigidity of the battery cover 6 is increased. For this reason, even if the battery cover 6 is firmly fixed to the cover 52, the deformation of the battery cover 6 is reduced, and a gap is hardly generated between the battery cover 6 and the cover 52 and the waterproof packing 91, so that inundation is prevented. The In addition, since the battery is locked by the four second locking pieces 6b, the battery cover 6 can be firmly fixed to the cover 52 with a force exceeding the repulsive force of the waterproof packing 91, and the locking force Is dispersed in four places, deformation due to the battery cover 6 is reduced, and water can be further prevented.

  The waterproof packing 92 is provided between the cover 52 and the case 51 so as to surround the substrate 26 so as to prevent water from entering the substrate 26, and is fastened to the case 51 by the fixing tool 7 via the cover 52. The peripheral edge 51a of the case 51 is folded back toward the cover 52, and the rigidity of the case 51 is increased. For this reason, inundation is prevented like the above.

  In the transmitter 2 of the present embodiment configured as described above, the water resistance of the transmitter 2 is improved in addition to the operational effects of the embodiment.

(Third embodiment)
Next, a transmitter 2 of a security system according to a third embodiment of the present invention will be described with reference to FIGS. FIGS. 8A and 8B show the appearance of the transmitter 2, and FIG. 9 shows an exploded configuration of the transmitter 2. The description of the same configuration as that of the transmitter 2 of the second embodiment is omitted. The transmitter 2 of the present embodiment is different from the second embodiment in the shapes of the cover 52 and the battery cover 6. On the upper surface of the cover 52, a portion in which the battery 24 is accommodated and a portion in which the fixing tool 7 is present are a flat surface without a step, and the entire flat surface is covered with the battery cover 6. The first locking piece 6a is inserted into the first opening 52a, and the battery cover 6 is rotated and pressed with the first locking piece 6a as a base point. Then, the second locking piece 6b is inserted into the second opening 52b and locked. When the battery cover 6 is closed, the battery 24 and the fixture 7 are hidden by the battery cover 6.

  In the transmitter 2 of the present embodiment configured as described above, the battery 24 and the fixing tool 7 are hidden by the battery cover 6 when the battery cover 6 is attached to the cover 52. As described above, the fixing tool 7 is hidden and the opening of the cover 52 is not perceived, and the cover 52 is difficult to open. , Security is improved. Moreover, since the fixing tool 7 is covered and cannot be seen from the outside, the design of the transmitter 2 is improved.

  On the other hand, the configuration of the first opening 52a, the second opening 52b, the first locking piece 6a, and the second locking piece 6b for attaching the battery cover 6 to the cover 52 is the same as that of the second embodiment. Since it is the same, battery replacement can be easily performed.

  In addition, this invention is not restricted to the structure of the said various embodiment, A various deformation | transformation is possible in the range which does not change the meaning of invention. For example, when the fixture 7 is a screw, the head 71 may have a shape other than a triangular recess. The fixture 7 is not limited to a screw, and may be a pin, for example. The shape of the tip of the second locking piece 6b is not a wedge shape, and may be a shape in which the protrusion 6c swells in a spherical shape, for example. Further, the waterproof packings 91 and 92 may be formed by two-color molding simultaneously with the battery cover 6 and the case 51.

1 is a configuration diagram of a security system according to a first embodiment of the present invention. The block diagram of the transmitter and tag reader of the security system. (A) is the external view which looked at the transmitter of the security system from diagonally upward, (b) was the external view which looked at the transmitter from diagonally downward. The disassembled perspective view of the transmitter. (A) is a perspective view when the cover of the transmitter is removed, (b) is a side view of a second locking piece of the transmitter. (A) is sectional drawing when the cover of the transmitter is removed, (b) is a sectional view when the cover of the transmitter is closed, and (c) is a sectional view of the cover of the transmitter. (A) is a disassembled perspective view of the transmitter of the security system which concerns on the 2nd Embodiment of this invention, (b) is a perspective view of the back surface of a battery cover. (A) is the external view which looked at the transmitter of the security system which concerns on the 3rd Embodiment of this invention from diagonally upward, (b) is the external view which looked at the transmitter from diagonally downward. The perspective view when the cover of the transmitter is removed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Security system 2 Transmitter 21 Memory | storage part 22 Communication part 23 Control part 24 Battery 51 Case (box)
52 Cover (lid)
52a First opening 52b Second opening 6 Battery cover (cover)
6a 1st locking piece 6b 2nd locking piece 6c Projection part 7 Fixing tools 91 and 92 Waterproof packing

Claims (2)

In a transmitter of a security system that transmits and receives ID data and opens and closes an electric lock based on the ID data.
A storage unit for storing the ID data;
A communication unit for transmitting the ID data;
A control unit for controlling the operation of the communication unit;
A battery for supplying power to the storage unit, the communication unit, and the control unit;
A box housing the storage unit, communication unit and control unit;
A lid that covers the opening of the box, holds the battery on the surface side, and is fixed to the box by a fixture;
A cover made of a flexible material fixed to the lid by a fixture different from the above so as to cover the battery,
The cover has a first locking piece protruding from one end side of the cover and locked to the lid, and a second locking piece protruding from the back surface of the cover and locked to the lid. ,
The lid has a first opening for locking the first locking piece, and a second opening for locking the second locking piece,
The first locking piece, the second locking piece, the first opening, and the second opening constitute the another fixing tool,
The cover is rotated by using the first locking piece locked in the first opening as a base point, and the second locking piece is locked in the second opening. The second locking piece of the cover, fixed to the lid, protrudes toward the tip of the first locking piece in the direction in which the first locking piece is located, and is prevented from coming off when locked to the second opening. A transmitter of a security system, characterized by having a protruding portion. The lid has a battery box on the surface for fixing the battery,
A waterproof packing for enclosing the battery box between the lid and the cover;
The transmitter of the security system according to claim 1, wherein a peripheral edge of the cover is folded toward the lid.

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