JP4137581B2 - Security system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a security system using a mobile phone, and more particularly to a security system suitable for opening and closing a door of an apartment or an apartment.
[0002]
[Prior art]
In condominiums, apartments, or detached houses, etc., many locks such as entrances are mechanical structures that can be opened and closed with a combination key, and the locks are embedded in doors or the like. Moreover, the resident possesses the key when going out.
[0003]
[Problems to be solved by the invention]
It is not uncommon for tenants to change in apartments and apartments. In this case, it is safer for the new resident to replace the door lock such as the entrance because the old resident may have the key. However, replacing the lock of the mechanical structure that is usually used is time-consuming and expensive. When a plurality of locks are attached, the labor and cost for replacement increase. In addition, it may be bulky and unpreferable to have a key when going out depending on the situation of clothes and other belongings.
[0004]
The purpose of the present invention is to make it easy to change the “key” when the occupant changes, and to eliminate the need to have a key if you have a mobile phone when you go out . It is an object of the present invention to provide a security system that prevents chattering when opening and closing a lock .
[0005]
[Means for Solving the Problems]
The present invention is a security system comprising a mobile phone and a lock portion having a lock that can be electronically controlled to open and close,
The mobile phone includes a first encryption code setting means, a first memory holding the encryption code set by the means, a first infrared communication means, and an encryption code including the encryption code set in the first memory. First transmission means for transmitting a setting signal to the lock portion via the first infrared communication means, and a lock control signal including an encryption code set in the first memory via the first infrared communication means. Second transmission means for transmitting to the lock part,
When the encryption code setting signal is received by the second infrared communication means capable of communicating with the first infrared communication means of the mobile phone, the second memory, and the second infrared communication means, the lock portion receives the encryption code. A second encryption code setting means for setting the encryption code included in the setting signal in the second memory; and when the lock control signal is received by the second infrared communication means, the encryption code included in the lock control signal; An encryption code collating means for collating the encryption code set in the second memory, and an opening / closing control means for performing opening / closing control of the lock when the collation result by the means matches ,
Further, the mobile phone has a first lock opening / closing mode setting means for setting either the manual mode or the automatic mode as the lock opening / closing mode in the first memory, and the lock opening / closing mode set in the first memory is set to the first memory. Third transmission means for transmitting to the lock portion via infrared communication means; input means for inputting an encryption code and an open / close signal as the lock control signal when the manual mode is set in the first memory; First transmission control means for controlling the second transmission means to transmit the lock control signal input by this means to the lock portion via the first infrared communication means, and the automatic mode in the first memory. Control is performed so that the second transmission means always transmits the lock control signal including the encryption code set in the first memory to the lock portion via the first infrared communication means when set. And a second transmission control means is provided that,
When the lock opening / closing mode is received by the second infrared communication means, the lock opening / closing mode setting means for setting the lock opening / closing mode in the second memory is received by the second infrared communication means. Level detecting means for detecting the reception level of the received signal, and when the manual mode is set in the second memory, the lock control signal from the second transmitting means is transmitted by the second infrared communication means. When the coincidence between the encrypted code received and included in the received lock control signal and the encrypted code set in the second memory is confirmed by the encrypted code collating means, the opening / closing control means adds the received lock control signal to the received lock control signal. The lock is controlled to open / close in response to an included open / close signal, and the lock from the second transmission means when the automatic mode is set in the second memory. When the control signal is received by the second infrared communication means and the coincidence between the encryption code included in the received lock control signal and the encryption code set in the second memory is confirmed by the encryption code collating means, The open / close control means checks whether the lock is open or closed. When the lock is closed and the reception level detected by the level detection means is greater than a predetermined first level, the lock is opened, and the lock is open. And when the reception level is smaller than a second level set to a value smaller than the first level, the lock is closed.
The open / close control means discloses a security system characterized in that chattering of the lock opening / closing operation is prevented by giving the opening / closing operation a hysteresis characteristic .
[0006]
Furthermore, the present invention provides level detection means for detecting the reception level,
The first, second, and third reception levels having a large, medium, and small relationship can be identified and detected, and reception through the second infrared communication means when the automatic mode is set in the second memory is The security system according to claim 1, wherein reception is performed at the third reception level or higher .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below. FIG. 1 is a block diagram illustrating a configuration example of a security system according to the present invention, which includes a lock unit 1 and a mobile phone 2. The lock unit 1 includes a lock 11 whose opening and closing is electronically controlled, an MPU 12, a storage device 13, an input key 14, and an infrared communication unit 15. On the other hand, the mobile phone 2 is provided with an MPU 21, a storage device 22, an input key 23, a display device 24, a microphone 25, a speaker 26, and the like for realizing normal functions as a mobile phone. An infrared communication unit 27 for exchanging information is provided, and has a function of communicating with the infrared communication unit 15 of the lock unit 1 and transmitting an opening / closing signal of the lock 11 to the lock unit 1.
[0008]
When a signal is sent from the mobile phone, the infrared communication unit 15 of the lock unit 1 receives, demodulates, and sends it to the MPU 12. When the encryption code is input from the infrared communication unit 15, the MPU 12 compares the encryption code stored in the storage device 13 in advance with the input encryption code, and performs the opening / closing control of the lock 11 if they match. . When a close signal is input from the input key 14, the lock 11 is controlled to close.
[0009]
In addition to various functions as a normal cellular phone, the cellular phone 2 is provided with a function for inputting and transmitting a signal to the lock unit 1 via the infrared communication unit 27 described above. This function inputs an encryption code and sets it in the storage device 22, transmits it to the lock unit 1 via the infrared communication units 27 and 15, and sets it in the storage device 13, or changes the set encryption code Encryption code setting update function for performing erasure and erasure, lock opening / closing mode setting function for setting in the storage devices 13 and 22 whether the lock is opened / closed in the manual mode or the automatic mode, and the lock opening / closing signal and the encryption code are locked. This is a function for sending to the unit 1.
[0010]
FIG. 2 is a flowchart showing the operation when the mobile phone 2 sets the encryption code and the lock opening / closing mode, and whether the setting mode is selected by the key operation of the mobile phone and whether the encryption code is newly set, updated, deleted, etc. Select (step 201). When updating the encryption code or the like, the user inputs the contents (encryption code or erasure instruction) to be set by the key operation next. Step 203). This is to set the input encryption code when the encryption code is newly or updated, and to delete the already set encryption code. Further, the input information is transmitted to the lock unit 1 via the infrared communication units 27 and 15 (step 204). The operation so far is controlled by the MPU 21. In the lock unit 1, when an encryption code is sent from the mobile phone, it is received and demodulated by the infrared communication unit 15, and the demodulated encryption code is set in the storage device 13 under the control of the MPU 12 (step 205).
[0011]
In the cellular phone 2, when the operation such as the update of the encryption code is completed or the selection not to update the encryption code is performed (NO in step 201). Next, the user selects whether or not to perform the lock opening / closing mode update or the like by a key operation (step 206). When updating, etc., the input of the lock opening / closing mode (manual / automatic) is waited. When the input is completed (YES in step 207), the mode is set in the storage device 22 (new, updated or deleted, step 208), and then The input content is transmitted to the lock (step 209). The operations of steps 206 to 209 are controlled by the MPU 21. According to the information sent from the mobile phone 2, the lock unit 1 performs a new setting, update or deletion of the lock opening / closing mode of the storage device 22 under the control of the MPU 12 (step 210).
[0012]
When the above operation is completed, the setting result is displayed on the display device 24 of the cellular phone (step 211). If the display content is acceptable, the user performs an ending operation (YES in step 212), thereby ending the setting operation. However, if it is not finished, the process returns to step 201 and starts again. According to the above setting function, the encryption code can be easily updated and the security is improved when the user is changed. This result does not change even when a plurality of locks are attached.
[0013]
FIG. 3 is a flowchart showing the lock opening / closing operation when the manual mode is set as the lock opening / closing mode. When the user who possesses the mobile phone 2 selects the function for performing the lock opening / closing by key operation, first, it is checked whether or not the lock opening / closing mode set in the storage device 22 is “manual” (step 301). When “manual” is set, the user waits for an input of an encryption code and an instruction to open or close (step 302). When this input is completed, the input data is transmitted to the lock unit 1 (step 303). Up to this point is controlled by the MPU 21. The lock unit 1 checks whether or not the encryption code in the received signal matches the encryption code set in the storage device 13, and only when it matches, the lock 11 is opened / closed according to the input open / close instruction. Closing is performed under the control of the MPU 12 (steps 304 and 305), and the process is terminated. In the case of this manual operation, instead of allowing the user to input the encryption code in step 302, the encryption code set in the storage device 13 may be read and transmitted. Further, when the user inputs an encryption code by key operation, the input encryption code and the encryption code set in the storage device 22 are collated, and if they are different, a display prompting correct input may be performed. Good.
[0014]
FIG. 4 is a flowchart showing the lock opening / closing operation when the automatic mode is set as the lock opening / closing mode. In this mode, the cellular phone 2 always sends out the encryption code set in the storage device 22 from the infrared communication unit 27 when the power is turned on. Therefore, the opening / closing control of the lock is performed only by the MPU 12 of the lock unit 1. That is, when a signal equal to or higher than the reception level threshold value R0 that can be demodulated by the infrared communication unit 15 is input (YES in step 401), it is first checked whether the lock opening / closing mode set in the storage device 13 is “automatic” (step 402), in the case of “automatic”, it is checked whether the received and demodulated encryption code matches the encryption code set in the storage device 13 (step 403). If they match, the received signal level R (> R0) is detected (step 404), and the lock is opened and closed according to this level R as follows. For this purpose, it is assumed that two threshold values R1 and R2 (R2>R1> R0) are set in the storage device 13 in advance. First, it is checked whether the lock 11 is now closed or open (step 405). When the reception level R is greater than the threshold value R2 in the closed state, the lock 11 is opened (steps 406 and 407), and the reception level R is currently open. Is smaller than the threshold value R1, the lock 11 is closed (steps 408 and 409). In the opening / closing control in steps 406 to 409, as shown in FIG. 5, the close / open threshold value R2 is set larger than the open / close threshold value R1, thereby providing hysteresis characteristics and preventing chattering of the lock opening / closing operation. It is. According to the above-described lock opening / closing operation in the manual or automatic mode, the user uses the mobile phone as a “key”, so that it is not necessary to have a key when going out.
[0015]
2 to 4 described above, it is assumed that the position and orientation of the mobile phone 2 are held so that the infrared communication unit 15 and the infrared communication unit 27 can communicate with each other. For this purpose, in particular, for the automatic mode opening / closing operation, it is preferable that the infrared communication units 15 and 27 have a low directivity of infrared light emission / light reception, and preferably a structure capable of transmitting and receiving light in all directions. preferable.
[0016]
【The invention's effect】
According to the present invention, there is an effect that security can be ensured without changing the lock when the occupant changes, and it is not necessary to carry the key, and chattering associated with opening and closing the lock can be prevented. There is an advantage.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration example of a security system according to the present invention.
FIG. 2 is a flowchart of a setting operation.
FIG. 3 is a flowchart of a lock opening / closing operation in a manual mode.
FIG. 4 is a flowchart of a lock opening / closing operation in an automatic mode.
FIG. 5 is an explanatory diagram of lock opening / closing control in the automatic mode.
[Explanation of symbols]
1 lock part 2 mobile phone 11 lock 12, 21 MPU
13, 22 Storage device 14, 23 Input key 15, 27 Infrared communication unit

Claims (2)

A security system comprising a mobile phone and a lock portion having a lock that can be electronically controlled to open and close,
The mobile phone includes a first encryption code setting means, a first memory holding the encryption code set by the means, a first infrared communication means, and an encryption code including the encryption code set in the first memory. First transmission means for transmitting a setting signal to the lock portion via the first infrared communication means, and a lock control signal including an encryption code set in the first memory via the first infrared communication means. Second transmission means for transmitting to the lock part,
When the encryption code setting signal is received by the second infrared communication means capable of communicating with the first infrared communication means of the mobile phone, the second memory, and the second infrared communication means, the lock portion receives the encryption code. A second encryption code setting means for setting the encryption code included in the setting signal in the second memory; and when the lock control signal is received by the second infrared communication means, the encryption code included in the lock control signal; An encryption code collating means for collating the encryption code set in the second memory, and an opening / closing control means for performing opening / closing control of the lock when the collation result by the means matches ,
Further, the mobile phone has a first lock opening / closing mode setting means for setting either the manual mode or the automatic mode as the lock opening / closing mode in the first memory, and the lock opening / closing mode set in the first memory is set to the first memory. Third transmission means for transmitting to the lock portion via infrared communication means; input means for inputting an encryption code and an open / close signal as the lock control signal when the manual mode is set in the first memory; First transmission control means for controlling the second transmission means to transmit the lock control signal input by this means to the lock portion via the first infrared communication means, and the automatic mode in the first memory. Control is performed so that the second transmission means always transmits the lock control signal including the encryption code set in the first memory to the lock portion via the first infrared communication means when set. And a second transmission control means is provided that,
When the lock opening / closing mode is received by the second infrared communication means, the lock opening / closing mode setting means for setting the lock opening / closing mode in the second memory is received by the second infrared communication means. Level detecting means for detecting the reception level of the received signal, and when the manual mode is set in the second memory, the lock control signal from the second transmitting means is transmitted by the second infrared communication means. When the coincidence between the encrypted code received and included in the received lock control signal and the encrypted code set in the second memory is confirmed by the encrypted code collating means, the opening / closing control means adds the received lock control signal to the received lock control signal. The lock is controlled to open / close in response to an included open / close signal, and the lock from the second transmission means when the automatic mode is set in the second memory. When the control signal is received by the second infrared communication means and the coincidence between the encryption code included in the received lock control signal and the encryption code set in the second memory is confirmed by the encryption code collating means, The open / close control means checks whether the lock is open or closed. When the lock is closed and the reception level detected by the level detection means is greater than a predetermined first level, the lock is opened, and the lock is open. And when the reception level is smaller than a second level set to a value smaller than the first level, the lock is closed.
The security system characterized in that the opening / closing control means has a hysteresis characteristic in the opening / closing operation to prevent chattering of the lock opening / closing operation . The level detection means for detecting the reception level is:
The first, second, and third reception levels having a large, medium, and small relationship can be identified and detected, and reception through the second infrared communication means when the automatic mode is set in the second memory is The security system according to claim 1, wherein reception has occurred at a level equal to or higher than the third reception level .

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