JPH10222789A - Building management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the system which enable one person to easily confirm the consistency of meter inspection data with high precision at low cost as to a building management system equipped with an automatic meter inspecting function. SOLUTION: This building management system is equipped with local processors 5 which send data to a central management device 7, a radio repeating device 3 which is connected detachably to each local processor 5 and sends data received by radio to the central management device 7, and a handy terminal 2 for maintenance having a bar code read part 2a which reads out the bar code 1a of an inspection meter 1, a ten-key input part 2b for inputting an inspected value and a radio data transmission interface 2d which transmits data on a meter identification code and the inspected value by radio, and the central management device 7 has a function which finds a variation value in a meter inspection cycle between the meter inspected data value based upon the automatic meter inspecting function and the meter inspection data value sent from the handy terminal 2 for maintenance and outputs it each time the meter inspection data value is sent from the said handy terminal 2 for maintenance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building management system having an automatic meter reading function, and particularly to confirming the consistency of meter reading data.

[0002]

2. Description of the Related Art In a building management system having a meter reading function, when confirming consistency between an actual meter reading value and a recorded value of the system, a maintenance worker reading the actual meter value and a building management system are required. The current situation is that the maintenance personnel who check the values recorded in the central control unit are communicating with each other through a wireless device. Or
One maintenance worker reads and records the actual meter reading meter value and then compares it with the recorded value of the central control unit to confirm the consistency. As a service of meter reading itself, a method of transmitting data using a portable terminal, a telephone line, or the like has been conventionally considered.

[0003]

As described above, the method of communicating the actual meter reading and the recorded value of the central control device by a radio or the like requires two workers and is inefficient. . Also, in a place where radio waves are shielded, such as in a large building or underground machinery room, if the radio waves are weak, the radio waves do not reach from the actual meter installation location to the central control unit and communication cannot be established. There is also.

On the other hand, in a method in which one worker reads and records an actual meter value and then compares the measured value with a recorded value of a central management device, a time lag occurs, and the correct data consistency is confirmed. Cannot be performed.

The present invention has been made in order to solve the problems of the above-mentioned conventional example, and in a building management system having an automatic meter reading function, the consistency of the meter reading data can be easily and accurately confirmed by one person. The purpose is to obtain a building management system that can be performed at low cost.

[0006]

A building management system according to the present invention is provided in a building management system having a central management device having an automatic meter reading function of a meter reading meter provided in the building, which is provided at a plurality of locations in the building. A plurality of local processing devices respectively connected to the central management device via a transmission line for transmitting data, and data removably connected to each of the local processing devices and wirelessly received via the local processing device. And a reading unit for reading the meter identification code of the meter reader, an input unit for inputting the meter reading value, and data of the meter identification code and the meter reading value to the wireless relay device. A maintenance handy terminal having a wireless data transmission unit for wireless transmission is provided, and the maintenance handy is provided to the central management device. A function to calculate and output the fluctuation value between the meter reading cycle of the meter reading data value for each meter meter based on the automatic meter reading function and the meter reading data value sent from the maintenance handy terminal each time the meter reading data value is transmitted from the terminal. It is characterized by having.

In addition, the central management device, each time a meter reading data value is transmitted from the maintenance handy terminal, converts the meter reading data value based on the automatic meter reading function and the meter reading data value transmitted from the maintenance handy terminal, respectively. A storage unit that stores the difference, and a difference calculation unit that calculates the difference between the meter reading cycle of the meter reading data value based on the automatic meter reading function stored in the memory unit and the meter reading data value transmitted from the maintenance handy terminal, respectively. An output unit for outputting the difference result is provided.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on illustrated embodiments. FIG. 1 is a configuration diagram showing a building management system according to an embodiment of the present invention. In FIG. 1, 1 is a meter reading meter installed in a building,
Reference numeral 2 is a maintenance handy terminal for inputting the value of the meter reading meter 1 and wirelessly transmitting data, and 3 is detachably connected to a local processing device described later to receive radio data transmitted from the maintenance handy terminal 2. Wireless relay device for transmitting data to the local processing device, 4
Is a transmission cable that connects the wireless relay device 3 and the local processing device.

Reference numeral 5 denotes a local processing device installed at a plurality of locations in the building and serves as an interface with equipment in the building management system. Reference numeral 6 denotes a transmission cable for connecting the local processing device 5 and the central management device 7. , 7 has an automatic meter reading function of the meter reading meter 1 and each time the meter reading data value is transmitted from the maintenance handy terminal 2, the meter reading data value for each meter reading based on the automatic meter reading function and the maintenance handy terminal 2 are transmitted. The central management unit has a function of obtaining and outputting a fluctuation value between the measured meter reading cycle and the meter reading cycle.

The maintenance handy terminal 2 includes a bar code reading section 2a for reading a bar code 1a as a meter identification code of the meter reader 1, and a numeric keypad input section 2b for inputting a meter reading value of the meter meter 1. , A display unit 2c, a wireless data transmission interface 2d for wirelessly transmitting meter identification code and meter reading data to the wireless relay device 3, and a CPU 2e.

The wireless relay device 3 includes a wireless data transmission interface 3a, a serial transmission interface 3b for serially transmitting wireless relay data to the local processing device 5 via the transmission cable 4, and a CPU.
3c.

Further, the local processing device 5 includes a serial transmission interface 5a and a central management unit transmission unit for transmitting data transmitted from the wireless relay device 3 to the central management unit 7 via the transmission cable 6 in real time. An interface 5b and a CPU 3c are provided.

Further, the central management unit 7 has the local processing unit transmission interface 7a and the meter reading data value based on the automatic meter reading function every time the meter reading data value is transmitted from the maintenance handy terminal 2 and the maintenance handy terminal 2. Meter reading data storage circuit 7b for respectively storing the meter reading data values transmitted from the meter, and the meter reading data values based on the automatic meter reading function stored in the memory circuit and the meter reading data values transmitted from the maintenance handy terminal 2 Difference calculation circuit 7 that calculates the difference between cycles
c and an output device transmission interface 7d for outputting the difference result to a display device and a printing device which are output units.
, CPU 7e, display device 7f and printing device 7g
And

Next, the operation of the above configuration will be described. By reading the barcode 1a attached to the meter reader 1 in advance by the barcode reader 2a of the maintenance handy terminal 2, the meter can be identified without the operator being conscious of the meter name. The operator inputs the data using the ten-key input unit 2b while visually checking the value of the meter 1 and confirming the value on the display unit 2c. The meter identification number (meter identification code) and the input actual meter value (meter reading) are transmitted from the wireless data transmission interface 2d in response to an operator's data transmission command.

The wireless relay device 3 receives data transmitted wirelessly from the maintenance handy terminal 2 and transmits the data to the local processing device 5 by serial transmission. The local processing device 5 transmits the meter reading value and the meter identification number input from the maintenance handy terminal 2 to the central management device 7 via the connection cable 6 from the central management device transmission interface 5b. Central management device 7
Is provided with a meter reading data storage circuit 7b for storing the reading value of the actual meter transmitted from the local processing device for each meter identification number.

In the central control unit 7, when new data is received, the difference calculation circuit for calculating the difference between the respective data during the meter reading cycle by using the previous value of the meter reading data storage circuit 7b and the newly received data as the current value. 7c, and its value is stored in the meter reading data storage circuit 7b.
The value is output to a display device 8 or a printing device 9 serving as an output unit based on a request from a maintenance person. Therefore, the maintenance staff confirms that the building management system properly performs the meter reading function by comparing the difference value of the actual meter reading value and the difference value of the system count value.

The wireless relay device 3 provided between the maintenance handy terminal 2 and the local processing device 5
Is attachable to and detachable from each local processing device 5, and is used by being connected to the nearest local processing device 5 when reading the meter reading meter.

[0018]

As described above, according to the building management system of the present invention, in a building management system provided with a central management device having an automatic meter reading function of a meter reading meter provided in the building, a plurality of locations in the building are provided. A plurality of local processing devices respectively connected to the central management device via a transmission line for transmitting data; and a plurality of local processing devices detachably connected to the respective local processing devices and wirelessly connected to the respective local processing devices. A wireless relay device for transmitting the received data to the central management device, a reading unit for reading the meter identification code of the meter reading meter, an input unit for inputting a meter reading value, and the meter identification code and meter reading value data A maintenance handy terminal having a wireless data transmission unit for wirelessly transmitting to the relay device is provided, and the maintenance device is provided to the central management device. Each time the meter reading data value is sent from the D terminal, the meter reading data value for each meter reading based on the automatic meter reading function and the meter reading data value sent from the maintenance handy terminal are calculated and output for each cycle. By having the function, the bar code attached to the meter is read by the handy terminal for maintenance when evaluating the meter reading function.
By inputting the visually read meter reading value and sending the actual meter reading value corresponding to the relevant meter identification number to the central management unit in real time, the consistency of the meter reading data can be easily and accurately confirmed by one person. An inexpensive building management system can be obtained. In addition, since the wireless relay device is removable so that it can be detached as needed, it can process weak radio waves by connecting it to the local processing device closest to the maintenance handy terminal to be operated. Since a wireless data transmission circuit is not required for all local processing devices, a system can be configured at low cost.

Further, each time the meter reading data value is transmitted from the maintenance handy terminal, the central management device compares the meter reading data value based on the automatic meter reading function and the meter reading data value transmitted from the maintenance handy terminal. A storage unit for storing, a difference calculation unit for calculating a difference between a meter reading cycle of a meter reading data value based on the automatic meter reading function stored in the storage unit and a meter reading data value transmitted from the maintenance handy terminal, By providing an output unit for outputting the result of the difference, it is possible to perform a difference operation on the transmitted data in real time, and output the result to a display device or a printing device based on a request from a maintenance person, and confirm the result. You can easily check the data by yourself.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a building management system according to an embodiment of the present invention.

[Explanation of symbols]

1 meter reading meter, 1a bar code, 2 maintenance handy terminal, 2a bar code reading section, 2b numeric keypad input section, 2c display section, 2d wireless data transmission interface, 2e CPU, 3 wireless relay device, 3a
Wireless data transmission interface, 3b serial transmission interface, 3c CPU, 4 transmission cable, 5 local processing device, 5a serial transmission interface, 5b central management device transmission interface, 5c CPU, 6 transmission cable, 7 central management device, 7a local processing device Transmission interface, 7
b Meter reading data storage circuit, 7c difference operation circuit, 7d peripheral device transmission interface, 7e CPU, 7f display device, 7g printing device.

Claims (2)

[Claims] 1. A building management system comprising a central management device having an automatic meter reading function of a meter installed in a building, wherein the building management system is provided at a plurality of locations in the building and is connected to the central management device via transmission lines, respectively. A plurality of local processing devices for transmitting the received data, and a wireless relay device detachably connected to each of the local processing devices and transmitting data wirelessly received via the local processing devices to the central management device. A reading unit for reading the meter identification code of the meter reader,
An input unit for inputting the meter reading value and a maintenance handy terminal having a wireless data transmission unit for wirelessly transmitting meter identification code and meter reading value data to the wireless relay device; and the central management device includes the maintenance handy terminal. A function to calculate and output the fluctuation value between the meter reading cycle of the meter reading data value for each meter meter based on the automatic meter reading function and the meter reading data value sent from the maintenance handy terminal each time the meter reading data value is transmitted from the terminal. A building management system comprising: 2. The central management device, each time a meter reading data value is transmitted from the maintenance handy terminal, reads a meter reading data value based on an automatic meter reading function and a meter reading data value transmitted from the maintenance handy terminal. A storage unit that stores the difference, and a difference calculation unit that calculates the difference between the meter reading cycle of the meter reading data value based on the automatic meter reading function stored in the memory unit and the meter reading data value transmitted from the maintenance handy terminal, respectively. The building management system according to claim 1, further comprising an output unit that outputs the difference result.