JP3488638B2 - LED display device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting device which is installed on a road, in various stadiums, outdoors or indoors, and is used as an information display board for advertisement, guidance, road information and the like. The present invention relates to an LED display device using a diode, and particularly to a password setting function using a wireless input device. 2. Description of the Related Art Due to lower prices and diversification of needs, LED display devices are used in such a way that a plurality of same type models are installed in the same place and different information is displayed on each of them. Is increasing. Also, in a private store or the like, there is a situation in which the same model is installed nearby and different information is displayed. In such a situation, when the display data or the setting is changed using a wireless input device such as a remote controller, a nearby LE that is not intended to change is used.
The D display device also operates in the same manner, which may cause a malfunction. Conventionally, to solve these problems, a sticker is put on, a cover is put on, or an LED display to be operated by a person to be operated so that a receiving unit of the LED display device which is not intended to change does not receive a signal. This has been dealt with by starting the change work after devising such as approaching the device. In terms of hardware, an identification code is set in the wireless input device and the LED display device so that only devices that match the identification code can be operated, or a receiving unit of the LED display device that receives a signal from the wireless input device is used. , Operation ON
A method of providing an / OFF switch and turning it ON only when it is operated has been supported. [0006] However, the conventional LED display device has the following problems. When a plurality of LED display units are installed and the receiving unit of the conventional LED display unit is obscured by some method, when a large number of display units are installed nearby, it is very troublesome and troublesome. Work. In addition, LED
When the display device is installed at a high place, such as on the second floor, the third floor, or on a wall surface, the conventional method is very inconvenient. When the identification code is set by hardware, if the identification code of the LED display device is set before installation, it is not necessary to modify the LED display device after installation. Addition and addition of a circuit board and the like are required, which causes an increase in cost. [0009] Recently, LED display devices have become widespread in general stores, and a plurality of identical models have been installed in a shopping mall. There has been concern about pranks that change. These problems could not be solved by simple security such as identification codes. [0010] In order to solve such a problem, mounting a password function on a device has been considered for a long time.
By mounting the password function, always be a concern, was a hassle, etc., of the recovery method when you forget the password. According to the present invention, there is provided an LED display device in which various settings can be made on an LED display device main body by a wireless input device such as a remote controller, the wireless input device and the LED display device. One-to-one with the body
Identification and security are performed through a user interface mounted on the LED display unit. The user interface includes a password input function and a password input for setting a password in the LED display device. The function of encrypting, the function of displaying and confirming the encrypted password on the main body of the LED display device, the function of performing different encryption every time a password for password setting is input, and the function of a predetermined key of the wireless input device. L, characterized by having a function of initializing the password function by turning on the power of the LED display device body while pressing it, and returning to the state before setting the password.
ED display device. According to the above-described means for solving the problems described above, the LED display device of the present invention provides data and data. The settings can be protected by setting passwords with simple operations.
There are also two methods for solving the problem of forgetting the password that accompanies the password setting, and any one of these methods can be used to solve the problem. FIG. 1 is a view showing an embodiment of an LED display device according to the present invention, and FIG.
FIG. 1B is a configuration diagram of an LED display device including a display device main body and a remote control input device that controls the LED display device main body, and FIG. 1B is an explanatory diagram of the remote control input device. In FIG. 1A, the display state of an LED display device body 10 having a configuration such as an LED dot matrix is controlled by a remote control input device 20 by infrared communication or the like. When a signal from the remote control input device 20 is received,
The function of controlling the ED display device main body 10 will be referred to as a user interface mounted on the LED display device main body 10. An example of the LED display device main body 10 shown in FIG. 1A has a character “parking lot” and an arrow “→→”.
“→” is displayed in two rows. In FIG. 1B, the remote control input device 2
0 is a password key, 22 is a cursor key, 23 is an input key, 24 is a numeric keypad (0 to 9), and 25 is a numeric key, as shown in FIG.
Is an operation key, and 26 is an information key. The outline of each key operation of the remote control input device 20 will be described. When the password key 21 is pressed while the LED display device main body is displaying data, the LED display main body suspends data display and is changed to a password setting screen. On the password setting screen, the user performs an input operation in accordance with the screen display, but uses the numeric keypad 24 when inputting a number or a password. On the alternative screen, the cursor key 22 is used to move the cursor to the item to be selected. Here, when the input key 23 is pressed to confirm these settings, the settings are confirmed and the next setting screen is displayed. The operation key 25 is a changeover switch for forcibly displaying and hiding display data when the LED display device body is displaying data. When changing various settings on the setting screen, the current setting screen is released. There is a function to return to the previous screen. Then hold down this key and
When the power of the ED display device is turned on, it functions as a reset of display data and various settings. Finally, when the information key 26 is forgotten when the password is set at the time of setting the password, by pressing this key, the encrypted password information is displayed on the screen of the LED display device main body. Other keys are keys for creating display data and inputting other settings. FIG. 2 is a flowchart of a setting operation system according to an embodiment of the present invention, and mainly relates to claim 1. With reference to FIG. 2, a flowchart of the setting operation system will be sequentially described for each step. This flowchart of the setting operation system explains the function of the user interface. Step [S01]: Password setting, process start step [S02]: Remote control key input While the LED display device is displaying data, an arbitrary remote control key is pressed. Step [S03]: Whether the password setting is valid or invalid or whether the password setting is valid or invalid. If "valid", go to step [S16]. If "invalid", go to step [S0].
4]. <In the case of invalidity> Step [S04]: NO Is the key pressed in step [S02] the password setting key 21? If NO, proceed to Step [S05], YES
In the case of, go to step [S06]. Step [S05]: To each mode processing routine To each mode processing routine. If the operated input device key is not the password key 21, the process proceeds to step [S05] of a routine for performing normal data change or setting change, performs normal processing, and returns to the data display state. In this case the password remains of the disabled state. Step [S06]: Password validity or change Password validity or change is selected with the cursor key 22 and the input key 23. If valid, step [S07]
To the change, go to step [S09]. Step [S07]: Password set or not set Password set or not set. If the setting has been made, the process proceeds to step [S08]. If the setting has not been made, the process proceeds to step [S09].
What. The user interface of the present invention has a function to omit the password input operation by using the stored password if the password has been registered before when the valid password is selected. If the password has been set before, there is no need to enter a new password. The password is made valid in step [S08], the password is turned on in [S14], and the password is displayed in step [S15]. The setting process ends, and the screen of the LED display body 10 returns to the data display state. Step [S09]: When the password has not been set before the password is input, or when the change of the password is selected in step [S06],
The password input screen is displayed, and the password is input with the ten keys 24 and the input keys 23. FIG. 3 shows a screen display of the LED display device main body at this time, which will be described later. Step [S10]: Confirmation of password and re-entry The user interface of the present invention has a re-entry request function for confirming the password after the password is entered, and a re-entry screen for confirming the password is displayed. Therefore, the password is re-entered with the ten keys 24 and the input keys 23. Step [S11]: Input check of password input The password input in step [S09] is compared with the password input in step [S10], and if they match, the password is validated in step [S13]. Then, the password ON display is performed in [S14], the password setting process ends in step [s15], and the screen of the LED display main body 10 returns to the data display state. If they do not match, a password NG is displayed in [S12], and the process returns to step [S09]. Step [S12]: Password NG display step [S13]: Password setting valid step [S14]: Password ON display step [S15]: Password setting processing ends. <In case of validity> Next, when a certain key of the input device is operated while the LED display device is displaying data, if the password setting is valid, a password input request screen appears. Must be entered using the numeric keypad 24. Regarding the password input at this time, the received character is not displayed but a special symbol is displayed to prevent the input password from being confirmed from the outside. Also,
When the password input screen is left unattended, if there is no input by the input device for a predetermined time, the screen of the LED display device returns to data display. Step [S16]: Password input request display step [S17]: Timeout If YES, go to step S26; if NO, go to step S18. Step [S18]: The first digit of the remote control key input password is input using the ten keys 24. Alternatively, the information key 26 and the input key 23 are pressed. Step [S19]: It is determined what key was pressed in the input key determination step [S18].
When the numeric key is pressed, the password input is continued, so that the process proceeds to step S16. When the information key is pressed, the process proceeds to step S20. When the input key is pressed, the password input is completed. As it is, go to step [S23]. Step [S20]: Display password information Step [S21]: Timeout If YES, go to step [S26]; if NO, go to step [S22]. Step [S22]: When the operation key 25 is pressed while the remote control key input password information is displayed, the password information is released and the process returns to the password input request screen step [S16]. Step [S23]: If the password verification result is NG, go to step [S26]. If OK, go to step [S24]. Step [S24]: Password setting release step [S25]: Password OFF display step [S26]: Password NG display. A display example of the password information display screen of the LED display device body according to one embodiment of the present invention is shown in FIG. 3 below as a four-character one-stage type. It goes without saying that this may be the case. In FIG. 3, if the password is valid in step [S06] and the password is not set in step [S07], or if the password change is selected in step [S06], "Password" is displayed on the main body screen,
After one second, "input" is displayed. The step at this time is in [S09]. Here, when the numeric keypad 24 is operated for inputting the first digit of the password, the user interface of the present invention displays the characters that are accepted at the time of inputting the password without displaying the characters arbitrarily assigned to each number. It is characterized by being displayed,
Instead of displaying the pressed number, a symbol arbitrarily assigned to each number by the user, for example, a "!" Symbol is displayed for one character. Similarly, the user operates and operates the second, third, and fourth digit numeric keys 24 of the password. At this time, “input! # $%” Is displayed on the LED display device body. here,
When the input key 23 is pressed, the user interface of the present invention has a re-entry request function for confirming the password after inputting the password. Therefore, a password re-entry request screen and step [S10] are displayed. Is displayed, and after one second, "confirmation" is displayed. Here, similarly to step [S09], numeric keypad 2
When the user operates 4 and inputs the 4-digit password, the LED display device main body does not display the number pressed in the same manner as in step [S09], but displays a symbol arbitrarily assigned by the user to each number. "Confirmation! # ＄%". In this embodiment, the password is a four-digit number, but may be another number. Also, for example, alphabets and symbols such as “A”, “B”, “C”, and “!” Are assigned to the “1” key of the ten keys 24 on the remote controller, and each time the key is pressed, “1” →
If alphabets and symbols assigned as "A" → "B" → "C" → "!" → "1" appear, characters that can be used for passwords are alphabets and symbols other than numbers. There is no particular problem. When a password is entered using the numeric keypad 24,
In the user interface of the present invention, the characters received at the time of inputting the password are not displayed, and the symbol arbitrarily assigned to each number by the user is displayed, so the received characters are not displayed, A special symbol is displayed to prevent the entered password from being confirmed externally. Next, the LE according to the embodiment of the present invention will be described.
Since the user interface of the D display device displays a symbol arbitrarily assigned to each number by the user without displaying characters accepted when entering the password, a method of arbitrarily assigning a symbol to each number is used. Will be described. When the assignment key 27 of the input device is pressed, a symbol assignment screen is displayed on the main body screen. Here, a symbol to be assigned to the numerals 0 to 9 is selected. The assignment method is not particularly specified. For example, after pressing the “0” key of the numeric keypad while the assignment screen is displayed, each time the assignment key 27 is pressed, a selectable symbol appears and the user wants to set. There is a method of registering by pressing the input key when it becomes a symbol and repeating this from ten keys "1" to "9". FIG. 5 is a block diagram showing L according to an embodiment of the present invention.
4 shows an example of allocation of a numeric keypad of a wireless input device of an ED display device. Here, the password is set to “!
Since it is # @%, “1234” is the password. This means that only a person who has assigned an arbitrary symbol to a number is known, and is not understood by a third party. This makes it possible to determine whether or not the password intended by the user has been input, eliminating the need for the password reconfirmation screen step [S10] and simplifying the password setting operation. On the other hand, if the same setting is made for the numbers from 0 to 9, the symbol displayed on the password input screen will be, for example, "*
*** ", which is high in terms of security, but it is unclear whether the user himself / herself could input the intended password, and the need for a password reconfirmation screen appears. When the user presses the input key 23 after inputting the password on the password input request screen in step [S16], the password is compared with the password stored in the system. Since the interface has at least one of a password setting function, a password release function, and a function of selecting whether the password is valid or invalid, the password is invalidated, and the screen of the LED display device returns to the data display. . Thereafter, when the password is invalidated, each key of the input device becomes a key having a normal role, and data can be changed or setting can be changed. After this operation is completed, in order to make the password valid again, the password must be made valid by the procedure for validating the password shown in the case of invalidation. If you do not do this, your password will remain invalid. The password is compared with the password stored in the system. If the input password does not match, the screen of the LED display device returns to the data display with the password setting being valid. As described above, when the password is valid, the user must input the password, and all operations cannot be performed unless the password setting is invalidated. Therefore, when the password is forgotten, the password must be released. [First Method] In a first method, while pressing the operation key 25 of the input device,
The method of turning on the power of the LED display device main body serves as a reset for initializing all the settings of the LED display device.
Although the LED display unit is usually out of the sight of the administrator, the power outlet is often located near the administrator, and by using this part, it is possible to avoid unintended reset by the administrator. Can be. [Second Method] Although the first method is simple, it is impossible to perform the first method when the power cord is directly attached to the distribution board. In such a case, there is no other choice but to input an accurate password, and the second method is to enable this. The user interface displays the encrypted password (hereinafter referred to as password information) on the main body of the LED display device and uses it. A function that allows a user to recognize the information and to generate a forgotten password using software that decrypts the password information based on the recognized information is used. FIG. 4 is a flowchart of a user interface setting operation system according to an embodiment of the LED display device of the present invention. In particular, FIG. 4 is a diagram for explaining a system for decrypting a password using password information. FIG. 10 is a system block diagram of a step [S13] of creating a code from a password performed inside the LED display device body and a step [S20] of displaying the code. If the password is invalid in step [S03] and a new password needs to be registered or the password needs to be changed, step [S09]
Is executed in step [S11], and is executed when the password is matched in the input check in step [S11]. The four-digit password entered by the user is an LED
Routine information acquisition routine 4 inside display device body
The random number obtained from 1 is calculated as a secret key and the solution is obtained. With this alone, the secret key is unknown, so insert the secret key into the determined position of the calculated solution,
It is assumed that the encrypted password 42 is used. It is very difficult to decrypt the encryption created by such a method because the encrypted password has a different value even if the password is the same. The encrypted password is stored in the system area 43. When the information key 26 is pressed in the password input request screen step [s16] when the password is valid in the step [S03], a password information display screen step [S20] is performed. Here, the displayed password information 44 is an encrypted password stored in the system area, and this password information includes the above-mentioned secret key and a solution calculated with the secret key. , It cannot be decrypted into a password just by looking at it. However, the separately prepared decryption software 45 has a function of extracting the secret key from the password information and a function of extracting the password by performing the reverse operation to generate the secret key and the password information. ing. Since the password itself is reproduced for the decryption software, the decryption software is owned by the administrator who manages the software. That is, when the password is forgotten, the password can be decrypted from the encrypted password by the password decryption software. The above is a description of the LE according to one embodiment of the present invention.
Although the D display device is shown, the assignment of each key of the wireless input device 10 and the contents of the guidance display of the LED display device main body do not have to be as described above, and are not particularly limited. As described above, according to the LED display device of the present invention, L is controlled by a wireless input device such as a remote controller.
LE that can perform various settings on the ED display device body
D display device, wherein one-to-one identification and security of the wireless input device and the LED display device main body are performed via a user interface mounted on the LED display device main body. , A password input function, a function of encrypting the password entered for setting the password in the LED display device, a function of displaying the encrypted password on the LED display device main body, and a password for setting the password The password function is initialized by turning on the power of the LED display unit while pressing the predetermined key of the wireless input device, and the function that can change the encryption every time is input. And a function that can be returned. Therefore, even when a plurality of LED display devices are installed by the user interface mounted on the LED display device main body, the wireless input device and one of the LED display device main bodies can be operated by a simple operation of the wireless input device. Since one-to-one identification and security can be ensured, and the user interface is incorporated at the time of manufacturing the LED display device main body, it does not become a major factor in cost increase. The password is encrypted inside the LED display device, and the encrypted password can be confirmed at any time by the LED display device itself for the purpose of decrypting when the password is forgotten, but the encrypted password is special. It changes every time a password is entered without any operation.
It is difficult for others to easily decrypt the encrypted password, and security can be ensured. In the present invention, in particular, in the present invention, the user interface turns on the power of the LED display device main body while pressing a predetermined key of the wireless input device. A function to initialize the password function and to return to the state before setting the password is provided. [0070]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view according to an embodiment of an LED display device of the present invention, wherein (a) shows an LED formed by an LED display device main body and a remote control input device for controlling the LED display device main body; It is a block diagram of a display apparatus, (b) is explanatory drawing of a remote control input device. FIG. 2 is a flowchart illustrating a user interface setting operation system according to an embodiment of the LED display device of the present invention. FIG. 3 is a flow chart of a setting operation system of a user interface according to an embodiment of the LED display device of the present invention, in particular, a diagram for explaining guidance displayed on the LED display device main body when setting a password. FIG. 4 is a flowchart illustrating a setting operation system of a user interface according to an embodiment of the LED display device of the present invention, and particularly illustrates a system for decrypting a password based on password information. FIG. 5 is a diagram showing an example of assignment of numeric keys of a wireless input device of the LED display device according to one embodiment of the LED display device of the present invention. [Description of Signs] 10 LED display body 20 Remote control input device 21 by infrared communication or the like 21 Password key 22 Cursor key 23 Input key 24 Numeric keys (0 to 9) 25 Operation key 26 Information key

────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI H04Q 9/00 301 H04Q 9/00 301E 311 311F (56) References JP-A-8-328510 (JP, A) JP-A-10 -94670 (JP, A) JP-A-9-220353 (JP, A) JP-A-9-304727 (JP, A) JP-A-7-152837 (JP, A) JP-A-10-200524 (JP, A) JP-A-9-330298 (JP, A) JP-A-10-207606 (JP, A) JP-A-10-199102 (JP, A) JP-A-63-293664 (JP, A) JP-A-62 78644 (JP, A) JP-A-1-240922 (JP, A) JP-A-5-189113 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G09G 3/32 G09G 3 / 20 612 G09G 3/20 631 G09G 3/20 691 H01L 33/00 H04Q 9/00 301 H04Q 9/00 311

Claims (1)

(57) [Claim 1] An LED display device in which various settings can be made on an LED display device main body by a wireless input device such as a remote controller, wherein the wireless input device and the LED display device main body are connected to each other. One-to-one identification and security are performed through a user interface mounted on the LED display device main body. The user interface has a password input function and a password input for setting a password.
A function to encrypt in the display device, a function to confirm the encrypted password on the LED display device main body, a function to make a different encryption every time a password for password setting is input, and a wireless input device And turning on the power of the LED display device main body while pressing a predetermined key of (1) to initialize a password function and return to a state before setting the password.