KR200289193Y1 - Wireless Display Device for gasoline prices of oil station using LCD panel - Google Patents

Abstract

The present invention can change the display price of gasoline or kerosene, which was manually written or changed on the sign board, in real time from a remote location by wireless or wired, and also a gas station using an LCD panel for easy identification of the amount. It relates to a wireless price display device of.

The wireless price display device of a gas station using the LCD panel of the present invention is a device for displaying a price of gasoline, diesel, etc. sold at a gas station, and is input using a control program and control data stored in the ROM / 209. A control unit 201 for changing the displayed price, a demodulation unit 203 for demodulating the radio frequency signal input through the antenna 208, extracting specific data, and then inputting it to the control unit 201; An LCD panel 204 having a background area B which is formed of a 7-segment which is converted into a transparent state or an opaque state by application and is constantly maintained in an opaque state, and the controller An LCD driver 205 for controlling the corresponding inversion pattern A on the LCD panel 204 to be converted into an opaque state according to a control code input from the 201 and a rear surface of the LCD panel 204. Is turned on to turn on the backlight 207 that transmits light through the inversion pattern A of the inversion pattern A of the LCD panel 204 which is maintained in a transparent state according to the control signal of the controller 201. A price display unit 20 including a backlight driver 206 for outputting a signal; And a control unit 301 for transmitting the display price to the price display unit 20 using the control program and control data stored in the ROM / RAM 306, and the price data from the control unit 301 as a radio frequency signal. Inputting to the controller 301 the modulator 302 for modulating and outputting the antenna 308, the monitor driver 305 for driving the monitor 304 to visually display information, and the changed display price. Characterized in that it comprises a price input transmission unit 30 including an input unit 307 for.

Description

Wireless price device for gasoline prices of oil station using LCD panel

The present invention can change the display price of gasoline or kerosene, which was manually written or changed on the sign board, in real time from a remote location by wireless or wired, and also a gas station using an LCD panel for easy identification of the amount. It relates to a wireless price display device of.

After the price liberalization of gasoline sold at gas stations, each gas station is encouraging drivers to purchase gasoline by indicating the price of gasoline sold on the day. The price display in the conventional gas station is displayed on a daily basis by directly entering a price or replacing a number card in association with the name of the product sold on the sign board 10 as shown in FIG. Drivers can benefit from the economy by looking at the gasoline or diesel prices displayed on the sign board 10 while driving the vehicle and purchasing cheaper products.

But at gas stations it is very annoying to display prices that change every day. In other words, the price of gasoline or other products, which are changed every day, must be changed manually, and in order to increase price competitiveness, it is necessary to grasp the price trends of other gas stations and respond quickly accordingly, so that gasoline and kerosene can be changed several times a day. The price of the product, such as diesel, or diesel, should be changed. In particular, when a signboard for price display is installed at a place away from a gas station, it is very difficult to change the price displayed by hand, and thus, inaccurate sales are often caused by providing inaccurate information to the driver. Therefore, there is a need to quickly change the price information that changes from time to time.

In addition, the method of displaying a number on the sign board 10 as described above is somewhat effective during the day, but the use of an electric signboard (電光 板) because it becomes useless at night when the power system distinction is reduced. These billboards are identifiable from a distance, but are also useless in the daylight. Therefore, the conventional gas station was inconvenient to use a separate price display means each day and night.

The present invention is to solve the above problems, the object of the present invention is to change the input to the price display in real time from the remote location wirelessly installed at least one or more price display by the manual sign on the conventional signboard The present invention provides a wireless price display device for a gas station using LCD panels.

Another object of the present invention is to provide a wireless price display device of a gas station having an LCD panel that enables the driver to easily identify the display price even during the day and night driving of the vehicle despite the effect of sunlight.

Figure 1 is an embodiment of a price display sign board used in a conventional gas station,

2 is a schematic configuration diagram of a wireless price display device of a gas station according to the present invention;

3 is a block circuit diagram of a price display unit according to the present invention;

4 is a front view of the LCD panel according to the present invention,

5 is a block circuit diagram of a price input transmission unit according to the present invention;

6 is a flowchart illustrating an operation state of a wireless price display device of a gas station of the present invention;

Figure 7 is an embodiment of the LCD panel for price display according to the present invention.

※ Explanation of symbols about main part of drawing ※

10: Price display sign board 20: Price display unit

30: price input transmission unit 201: control unit

202: modulator 203: demodulator

204 LCD panel 205 LCD drive unit

206: backlight driving unit 207: backlight

208: antenna 209: ROM / RAM

301: control unit 302: modulation unit

303: demodulator 304: monitor

305: monitor driver 306: ROM / RAM

307: input unit 308: antenna

A: (7 segment) inversion pattern B: Background area

The wireless price display device of the gas station having the LCD panel of the present invention for achieving the above object, in the device for displaying the price of gasoline, diesel, etc. sold at the gas station, using a control program and data stored in the ROM / RAM A control unit for changing and displaying an input price, a demodulation unit for demodulating a radio frequency signal input through an antenna to extract specific data, and inputting the control unit to a control unit, and switching to a transparent state or an opaque state by applying power An LCD panel having a 7-segment inverted pattern formed thereon, the LCD panel having a base area B constantly maintained in an opaque state, and a corresponding inversion on the LCD panel according to a control code input from the controller. An LCD driver for controlling the pattern A to be converted into an opaque state and a rear panel of the LCD panel. Price display unit including a backlight driving unit which outputs a lighting signal for lighting the backlight which transmits light through a reversal pattern (A) held in the transparent state of the inversion pattern (A) of the LCD panel according to the control signal portion; And a control unit for transmitting a display price to the price display unit using a control program and control data stored in the ROM / RAM, a modulator for modulating the price data from the control unit into a radio frequency signal and outputting the same through an antenna. And a price input transmission unit including a monitor driving unit for visually displaying information by driving and an input unit for inputting the changed display price to the controller.

Hereinafter, a wireless price display device of a gas station using the LCD panel of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic configuration diagram of a radio price display apparatus of a gas station according to the present invention.

As shown, the price display unit 20 for displaying the price of the sale product, such as gasoline, diesel, kerosene, etc. at the current or present time, and wirelessly transmitting the product price displayed by the price display unit 20 at a remote location It consists of a price input transmission unit 30 for input in a manner.

The price display unit 20 displays the price of gasoline to the vehicle driver, as in the conventional sign board 10, and is located in front of the road so that the driver of the gas station or the driver in the vehicle can easily recognize the gasoline. In addition, the price input transmission unit 30 is installed in the office of the gas station so that the administrator easily enters the product price that is changed.

Since the price display unit 20 and the price input transmission unit 30 are wirelessly connected, the price display unit 20 may be provided in plural numbers so as to be easily recognized by the driver. Although only gasoline prices are numbered in the figures, it is clear that other products than gasoline can also be displayed the same. The price display section 20 and the price input transmission section 30 can also be connected by wire.

3 is a block circuit diagram of the price display unit 20. The control unit 201 for changing and displaying an input price using a control program and data stored in the ROM / RAM 209 and an antenna 208 are provided. A modulator 202 for modulating and periodically outputting state data periodically output from the control unit 201 to a radio frequency signal, and demodulating the radio frequency signal input through the antenna 208 to extract specific data and then controlling the control unit ( A background region which is formed of a demodulator 203 for inputting to 201 and a 7-segment which is switched to a transparent state or an opaque state by applying power, and which is always maintained in an opaque state. An LCD panel 204 having (B) and an LCD driver 205 for controlling the corresponding inversion pattern A on the LCD panel 204 to be switched to an opaque state according to a control code input from the controller 201. Wow The backlight is installed on the rear panel of the LCD panel 204 and transmits light through the inversion pattern A of the inversion pattern A of the LCD panel 204 maintained in a transparent state according to a control signal of the control unit 201. And a backlight driver 206 for outputting a lighting signal for lighting up 207.

The control unit 201 controls the price display unit 20 by using the control program and control data stored in the ROM / RAM 209, and recognizes the price information transmitted from the price input transmission unit 30 and the corresponding price information. Change to display. In addition, in order to confirm that the price display unit 20 operates normally, the control unit 201 periodically transmits state data indicating a normal operation state to the price input transmission unit 30. If the normal operation is not performed, since the periodically transmitted signal is not input to the price input transmission unit 30, the price input transmission unit 30 may detect a malfunction state.

Since the modulator 202 and the demodulator 203 modulate / demodulate a signal transmitted through the antenna 208, a detailed description thereof will be omitted.

In addition, the LCD panel 204 and the LCD driving unit 205 is a display device for displaying specific information according to a control command of the control unit 201, and the present invention is characterized in that numbers are displayed in reverse. . In other words, in general, devices such as LCD panels and electronic displays are not able to be identified because the recognition rate is remarkably lowered in the strong sunlight, whereas the LCD panel 204 of the present invention displays the driver without being influenced by sunlight. It has a structure that makes it easy to recognize numbers. Structure and operation state of the LCD panel 204 used in the present invention is as follows.

Referring to FIG. 4, the seven-segment inversion pattern A displayed on the LCD panel 204 is, for example, seven inversion patterns A forming an “8” shape and one for a point at the bottom right. The inversion pattern A may be formed by forming multiple (possibly increased according to the number of digits) one LCD panel 204, all of which are indicated by double-dotted lines in the drawings.

In addition, the background area 34 is always maintained in an opaque state and is configured to be, for example, a black background. Thus, the price indicator may be displayed in white on a black background or in other colors that can be identified by the driver. White or other colors representing the price number may change depending on the color of the backlight 207. In addition, since the background area B of the LCD panel 204 is black, light is absorbed even when sunlight shines, so the number of the inversion pattern A is more clearly recognized by the driver.

The backlight 207 is supplied with operating power by the backlight driver 206, and the backlight driver 206 is turned on / off according to a control signal of the controller 201.

When the control code is input from the control unit 201 through a control terminal (not shown), the corresponding inversion pattern A on the LCD panel 204 is converted into an opaque state to display reverse phase, and then, the backlight driving unit 206 is used. The backlight 207 is turned on.

At this time, some of the 7-segment inversion pattern (A) shown on the LCD panel 204, the inversion pattern (A) corresponding to the letter or number to be displayed is kept in a transparent state, and only the remaining inversion pattern (A) is switched to the opaque state. As a result, the light of the backlight 207 is transmitted through only a part of the inversion pattern A which is maintained in a transparent state. Furthermore, since the background area B is in an opaque state in which light is not transmitted, the contrast of contrast is further increased. Become distinct. In FIG. 7, when the control code corresponding to “245” is input through the LCD panel 30 as shown in the above example, an embodiment in which the corresponding number “245” is displayed in reverse is displayed. Of course, the number of digits in these numbers can be changed. Referring back to FIG. 4, it can be seen that the backlight 207 is installed adjacent to the rear surface of the LCD panel 204 to irradiate light.

5 is a block circuit diagram of the price input transmission unit 30, the control unit 301 for transmitting the display price to the price display unit 20 using the control program and control data stored in the ROM / RAM 306 and The modulator 302 modulates the price data from the controller 301 into a radio frequency signal and outputs it through the antenna 308, and the state data transmitted from the price display unit 20 through the antenna 308. Demodulator 303 for receiving and demodulating and inputting to the controller 301, a monitor driver 305 for visually displaying information by driving the monitor 304, and the changed display price to the controller 301. An input unit 307 for inputting is included.

The controller 301 controls the price input transmission unit 30 using the control program and control data stored in the ROM / RAM 306, and recognizes the price information input by the manager through the input unit 307, Modulated into a radio frequency signal and transmitted through the antenna 308. In addition, it recognizes the state data from the price display unit 20 to confirm the normal operating state. The input unit 307 is an input unit such as a keyboard having a general numeric key.

The modulator 302 and the demodulator 303 perform a function of modulating and demodulating specific information into a radio frequency signal like the modulator 202 and the demodulator 203 of the price display unit 20.

In addition, the monitor 304 and the monitor driver 305 are display devices that display specific information according to a control command of the controller 301.

The operating state of the price display apparatus of the gas station of the present invention having the above configuration will be described with reference to the flowchart of FIG. 5.

The gas station manager first inputs the changed price information through the input unit 307 of the price input transmission unit 30 to change the price of gasoline. When price information is input, the controller 301 controls and monitors the monitor driver 305. On the screen of 304, price input information is displayed.

The controller 301 modulates the price information input by the manager through the antenna 308 after modulating the price information input by the manager into the radio frequency signal. The radio frequency signal transmitted through the antenna 308 is demodulated by the demodulator 203 after being received through the antenna 208 of the price display unit 20. The demodulated data signal is input to the control unit 201. The price information is transmitted with a price and a unique identifier for a product (eg gasoline) that needs to be changed.

The controller 201 recognizes the input price indication data and the unique identification code data and changes price information on the corresponding product. After the price information is changed as described above, the controller 201 controls the LCD driver 205 to display the changed price through the LCD panel 204.

Since the price change as described above is performed by all the price display unit 20 within the reach of the radio frequency signal, the driver can easily recognize the gasoline price by making a number of price display unit 20 of the present invention By installing in a place can be a high price advertising effect by performing a price change quickly.

In addition, in order to allow the administrator to confirm that the price display unit 20 is operating normally, the state data is periodically transmitted from the price display unit 20 to the price input transmission unit 30 using a radio frequency signal. The price input transmission unit 30 may confirm that the price display unit 20 located at a remote location is normally operated by using the input state data. Such a function provides a very convenient function when a plurality of price display unit 20 is distributed and installed in a remote place.

As such, according to the present invention, the price display, which is distributed by at least one or more of the conventional manual sign boards, can be changed at the same time by inputting the price in real time from a remote location by wireless or wired. And in any case at night, the amount of money can be easily identified.

Claims (3)

In the device for displaying the price of gasoline, diesel, etc. sold at the gas station to the driver of the vehicle, The control unit 201 for changing and displaying the input price using the control program and the control data stored in the ROM / RAM 209 and demodulating the radio frequency signal input through the antenna 208 to extract specific data; A demodulation unit 203 for inputting to the control unit 201 and a 7-segment inversion pattern A which is switched to a transparent state or an opaque state by applying power, and an inverted pattern A is formed and is always maintained in an opaque state. An LCD panel 204 having a background area B, and an LCD driver for controlling a corresponding inversion pattern A on the LCD panel 204 to be converted into an opaque state according to a control code input from the controller 201. 205 and an inversion pattern A provided on a rear surface of the LCD panel 204 and maintained in a transparent state among the inversion patterns A of the LCD panel 204 according to a control signal of the controller 201. Bag that transmits light through Price display portion 20 that includes a backlight driving unit 206 for outputting the on-signal for turning on the site (207); And A control unit 301 for transmitting the display price to the price display unit 20 using a control program and control data stored in the ROM / RAM 306, and modulating price data from the control unit 301 into a radio frequency signal. The controller 302 for outputting the information through the antenna 308, the monitor driver 305 for visually displaying information by driving the monitor 304, and the controller 301 for inputting the changed display price. Wireless price display device of the gas station using the LCD panel, characterized in that consisting of the price input transmission unit 30 including an input unit (307). The method of claim 1, Wireless price display device of the gas station using the LCD panel, characterized in that at least one or more of the price display unit 20 is distributed, installed. The method according to claim 1 or 2, Modulation unit 202 for the price display unit 20 modulates and outputs the state data output from the control unit 201 through the antenna 208 into a radio frequency signal, The price input transmitter 30 further includes a demodulator 303 for demodulating the state data transmitted from the price display unit 20 through the antenna 308 and inputting the demodulated data to the controller 301. Wireless price display device of the gas station using the LCD panel, characterized in that for detecting the malfunctioning price display unit 20 by transmitting the operating state of the price display unit 20 periodically