KR100478890B1 - How to read a meter in a hand terminal - Google Patents

Abstract

The present invention relates to a hand terminal in a meter reading system, and to provide a method for wirelessly reading data electrically detected by a meter.

For this purpose, the meter reading method according to the present invention, when a meter reading is required by the hand terminal user, requires input of identification information of a meter to be metered, stores and displays the numeric key corresponding to the identification information according to the request, When the transmission key is controlled by the user, it checks whether the stored meter identification information exists, and if it exists, reads out the stored identification information and transmits it wirelessly, and in response to the sent identification information, If the currently detected data and the data previously read by the hand terminal are received, the display unit is displayed. If the transmission key or the cancel key is not controlled until a predetermined time elapses after the request for identification information, the hand terminal is set to the power-down mode. . This allows you to quickly and accurately determine the meter's current meter reading and usage.

Description

Meter Reading in Hand Terminals

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand terminal in a meter reading system, and more particularly, to a meter reading method capable of reading data (amount of power) detected by a meter in a hand terminal operated by a wireless communication method.

In general, the meter is configured to display the power used by the user by a mechanical method. Such a general meter has a problem that a separate meter reader needs to visually read the power displayed on the meter, which requires a lot of labor and may cause an error during the meter reading.

In order to solve this problem, a technique for a meter reading system has recently been proposed. This metering system can be used to analyze the meter and the hand terminal that can read the data on the usage detected by the meter through wireless communication with the meter. It is based on a computer system that has a basic configuration, but there are no specific operating methods for these basic configurations.

Accordingly, an object of the present invention is to provide a meter reading method capable of reading data (power) on a usage amount detected by each meter in a wireless communication method in a hand terminal.

Another object of the present invention, the meter reading method implemented to facilitate the identification of the amount of usage by easily sending out the identification information in the hand terminal and the data that was previously read by the meter and the previously read data together To provide.

In order to achieve the above objects, a meter reading method according to the present invention is a hand terminal capable of reading data on a usage amount detected by a meter in a wireless communication method. Requesting input of identification information for the computer; after performing the requesting step, if a predetermined number key is controlled, checking and storing and displaying the input sequence number; As a result of checking the entered sequence number, if the sequence number of the currently entered numeric key exceeds the number of information allocated to the identification information, the information on the currently stored numeric key is cleared, and the currently entered number is Storing and displaying as first information; If the transmission key is controlled by the user, checking whether the stored identification information exists; If the identification information exists, if the identification information exists, reading out the existing identification information and transmitting it wirelessly; in response to the transmitted identification information, the identification information of the user and the currently detected usage amount from the meter that wants to read the meter Displaying and storing the data and the data previously read by the hand terminal; After requesting identification information input, if the transmission key and the cancellation key are not controlled until a predetermined time elapses, setting the hand terminal to a power down mode is performed.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic functional block diagram of a hand terminal for performing a meter detection method according to the present invention, which includes a key input unit 102, a storage unit 108, a display unit 106, and not shown for inputting a user command. A data transmitter 110 for transmitting data to the meter, a data receiver 112 for receiving data from a meter not shown, and a controller 104 for controlling all functions of the hand terminal.

FIG. 2 is a flowchart illustrating a method for detecting a meter according to the present invention, which is applied to a hand terminal adopting a function selection method using a menu screen for convenience of use.

The operation of the method shown in FIG. 2 will now be described in detail with reference to FIG. 1.

When the meter reading function is selected through the key input unit 102 while the initial menu screen is displayed on the display unit 106, the microcomputer 104 starts the meter data reading mode in step 201 and proceeds to step 202. do.

In step 202, the microcomputer 104 displays on the display unit 106 a menu screen requesting input of identification information (IDentifier, hereinafter abbreviated as ID) assigned to the meter which wishes to read the hand terminal user. When a predetermined number key on the key input unit 102 is controlled with reference to the displayed menu screen, the microcomputer 104 proceeds from step 203 to step 204 where the currently input number key is the ninth key. Check for recognition. '9' is for checking whether the number information input exceeds the number of IDs assigned to each meter, and means that the number of IDs assigned to each meter is 8 digits. Therefore, when the information number of IDs assigned to the meter is changed, the above-mentioned '9' is changed to the number added with 1 to the changed number.

As a result of the check in step 204, if the currently input numeric key is not the ninth input numeric key, the flow proceeds to step 205 and stores the meter reading as an ID of a desired meter. The storage is performed in the ID area set separately in the storage unit 108. The numeric information input on the ID input request menu screen currently displayed on the display unit 106 is displayed for the user to confirm.

In step 206, after the ID input request menu screen is displayed in step 202, it is checked whether 15 seconds have elapsed. '15' seconds is to minimize the battery consumption due to the nature of the hand terminal, if the action is not taken when the above-mentioned ID input menu screen is displayed for a long time, the operation mode of the hand terminal is powered down To set to (Power Down) mode. Therefore, when 15 seconds have passed, as a result of the check in step 206, the process proceeds to step 207 to go to the power-down mode. The above-described '15 seconds' may be changed to any value that can satisfy the above-described minimization of battery consumption according to the number of information of the ID to be input and other operating conditions of the hand terminal. As a result of checking in step 206, when 15 seconds have not elapsed, the microcomputer 104 proceeds to step 203 and checks whether new key control is performed through the key input unit 102.

Steps 203 to 207 described above are repeated until all information corresponding to the ID (in this example, eight numeric information) is input. As a result of the above repetition, if the currently input numerical information is recognized as the ninth input numerical information in step 204, the microcomputer 104 proceeds to step 208 to obtain ID information stored in a predetermined area of the storage unit 108. All are cleared, and the currently input numeric information is stored as the first ID information and displayed on the display unit 106 as the first ID information. The flow proceeds to step 206 described above.

As a result of the check in step 203, if the key currently controlled by the key input unit 102 is not a numeric key, the microcomputer 104 proceeds to step 209 to check whether it is a cancel key. As a result of the check, in the case of a cancel key, the flow proceeds to step 210 and is set to the menu selection mode before the meter reading is requested. As a result, an initial menu screen for selecting a different function is displayed on the display unit 106.

However, as a result of checking in step 209, if the cancel key is not controlled, the microcomputer 104 proceeds to step 211 to check whether the transmission key is controlled. If it is determined that the transmission key is not controlled, the flow proceeds to step 206 described above. This means that in meter data reading mode, control of keys other than the numeric key, cancel key and transmission key is ignored.

If the transmission key is controlled as a result of the check in step 211, the microcomputer 104 proceeds to step 212 and checks whether a meter ID exists in a predetermined area of the storage unit 108. The check method recognizes that the meter ID exists if any data other than '0000 0000' is stored in the above-described predetermined area, and recognizes that the meter ID does not exist if '0000 0000' is stored. The aforementioned '0000 0000' may be changed according to the number of information of the ID.

If it is recognized that the meter ID does not exist in the storage 108, the microcomputer 104 proceeds to step 206 described above. However, if it is recognized that the meter ID exists in the predetermined area of the storage unit 108 as a result of the check in step 212, the process proceeds to step 213 to read the meter ID stored in the predetermined area of the storage unit 108 and the data. The transmitter 110 transmits the data through a wireless communication method.

The meter ID transmitted by the wireless communication method is received by a meter (not shown) having the same meter ID, and the wireless communication method stores data on its ID, currently detected usage amount, and previously read data. Send it out.

Accordingly, the hand terminal receives the meter data, which is performed using the meter ID. That is, the data receiving unit 112 receives information having the same ID as the transmitted ID, and the received information is transmitted to the microcomputer 104. Accordingly, the microcomputer 104 proceeds from step 214 to step 215, and stores the meter reading information on the display unit 106 and ends the operation. The reading information displayed is the meter ID corresponding to the monthly reading, the currently detected data corresponding to the reading of the current month, and the previously reading data corresponding to the reading of the previous month.

As described above, the present invention uses a unique identification information (ID) assigned to each meter in a hand terminal operated in a wireless communication method, and previously reads data on the amount of usage detected by the current meter wirelessly. By implementing the data can be read at the same time, there is an effect that can accurately and quickly determine the current data and the amount of use of the meter, compared to reading the amount of use with the naked eye. After the ID input according to the metering request is requested, if the meter ID transmission or the metering request cancellation is not required for a predetermined time, the power down mode is set to minimize the battery consumption of the hand terminal.

1 is a functional block diagram of a hand terminal for performing a meter reading method according to the present invention,

2 is an operation flowchart of a meter reading method according to the present invention.

<Description of the symbols for the main parts of the drawings>

102: key input unit 104: microcomputer

106: display unit 108: storage unit

110: data transmitter 112: data receiver

Claims (1)

In the hand terminal which can read the usage amount detected by the meter by a wireless communication method, If a meter reading is requested by the user of the hand terminal, displaying a menu screen for requesting input of identification information for a meter to be read; Checking and storing and displaying an input sequence number when a numeric key is controlled to obtain identification information of the meter among the numeric keys, cancel keys, and transmission keys displayed on the menu screen; As a result of checking the input sequence number, if the sequence number of the currently entered numeric key exceeds the number of information allocated to the identification information, the information on the currently stored numeric key is cleared and the currently input number is displayed. Storing and displaying as the first information of the identification information; Checking the existence of the stored identification information when a transmission key is controlled from a key input unit by a user among numeric keys, cancellation keys, and transmission keys displayed on the menu screen; If the identification information exists as a result of the check of the existence, reading out the existing identification information and transmitting it wirelessly; Displaying and storing the identification information, the currently detected data, and the data previously read by the hand terminal from a meter which wants to read the meter in response to the sent identification information; And after the request for inputting the identification information, if the transmission key and the cancellation key are not controlled until a predetermined time elapses, setting the hand terminal to a power down mode. In meter reading method.