JP2008058201A - Water meter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water meter which provides service water for inspection without troubling a resident when performing water quality inspection of the service water. <P>SOLUTION: A water injection pipe 120 and a container 130 for inspection are provided in the water meter, and the service water for inspection is poured into the container 130 for inspection. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a water meter that measures the amount of water used in a system to be measured.

Conventionally, water meters that measure the amount of water used by ordinary households and business establishments have become widespread. The measuring instrument includes a usage detection unit that measures the amount of water used in the system to be measured, a control unit that edits the usage amount detected by the usage detection unit into data, and a display that displays the data edited by the control unit. Part. (For example, Patent Document 1)
Japanese Utility Model Publication No. 5-27625 (4th page, FIG. 1)

As described above, water meters that measure the amount of water used by ordinary households and business establishments have been widely used.

  Water quality inspections of general households such as condominiums and detached houses need to be performed at a certain frequency. In order to perform a water quality test, it is necessary to inject water from each household into a test container and perform the test. When injecting water into the inspection container, it is necessary to ask the resident to obtain tap water for inspection, which is troublesome for the inspector. In addition, when there is no resident, there is a problem that tap water for inspection cannot be obtained.

An object of the present invention is to provide a water meter that enables an inspector to easily obtain tap water for water quality inspection.

In order to achieve the above object, a water meter according to the present invention comprises a measuring means for measuring the amount of water used in a system to be measured, a container for storing inspection tap water, and a water injection means for injecting tap water into the container. It is characterized by that.

According to the present invention, it is possible to provide a water meter that enables an inspector to easily obtain tap water for water quality inspection.

  Examples of the present invention will be described below.

  A first embodiment of a measuring instrument according to the present invention will be described with reference to FIG.

  In FIG. 1, reference numeral 100 denotes a water meter body, which is connected to a water pipe for supplying tap water.

  Reference numeral 110 denotes a water channel, which is composed of a pipe made of a metal such as stainless steel, and transmits tap water from the outside to the home.

  Reference numeral 111 is a first measuring unit which is composed of a water wheel showing a rotational speed that is directly proportional to the flow rate and a counting circuit that counts the rotational speed, and measures the amount of tap water flowing through the water channel 110 and converts it into an electrical signal. ing.

  120 is a water injection pipe made of a pipe made of metal such as stainless steel, etc., and has a structure branched from the water channel 110, and distributes inspection tap water.

  Reference numeral 121 denotes a shut-off valve, which is constituted by a valve having a sealing property such as rubber packing, and shuts off and distributes the inspection tap water flowing through the water injection pipe 120.

  A second measuring unit 122 is constituted by a water wheel showing a rotational speed that is directly proportional to the flow rate and a counting circuit that counts the rotational speed, and measures the amount of inspection tap water flowing through the water injection pipe 120 to measure an electric signal. Has been converted.

  An inspection container 130 is made of a plastic or the like, and is attached to the end of the water injection pipe 120 for accumulating inspection tap water.

  Reference numeral 140 denotes a display unit, which includes a liquid crystal display or the like, and displays a measured value measured by the measuring unit 111.

  A timer 150 is composed of a clock circuit using a crystal resonator, and counts year / month / day / hour / minute / second.

A communication unit 160 includes a wired or wireless interface circuit, and receives an external communication message.

Reference numeral 170 denotes a control unit which is configured by a microcomputer or the like, receives an electrical signal relating to the amount of water measured from the first weighing unit 111 and controls the display, and from the timer 150, the communication unit 160, and the second weighing unit 122. The shutoff valve 121 is controlled in response to the signal.

  Next, the operation of this embodiment will be described with reference to FIG. FIG. 2 is a flowchart showing the program flow of the water injection operation portion of this embodiment. This program is stored in a program memory (not shown) in the control unit 170 and controls the operation of the control unit 170.

  The measuring unit 111 is composed of a water wheel showing a rotational speed that is directly proportional to the flow rate of the water flow, a counting circuit that counts the rotational speed, and the like. is doing.

  The control unit 170 constantly receives an electrical signal from the measuring unit 111, detects the amount of water flowing in the water channel 110, and displays the amount of water on the display unit 140 as a used amount (not shown in the figure).

  The water injection operation is performed according to the following procedure.

  The timer unit 150 counts year / month / day / hour / minute / second and informs the control unit 170 of the current time. When it is determined that the preset setting date / time has been reached (step 201), or when the controller 170 determines that a water injection execution command instructing to perform a water injection operation with a transmission signal is received from an external device (step 202). ), The shut-off valve 121 is opened and a water injection operation is performed (step 203). In addition, when it is not the set time and it is determined that the water injection execution command has not been received from the external device, the water injection operation is not performed. When the shut-off valve 121 is opened, the inspection tap water flows into the water injection pipe 120 through the water channel 110 and the measuring unit 122 and is injected into the inspection container 130 with the water pressure. The measuring unit 122 is composed of a water wheel showing a rotational speed that is directly proportional to the flow rate of the water flow and a counting circuit that counts the rotational speed, and measures the amount of inspection tap water flowing through the water injection pipe 120 and converts it into an electrical signal. To the control unit 170. The control unit 170 determines whether the set water amount has been reached based on the electrical signal from the measuring unit 122 (step 204). When the water injection amount reaches the set value, the control unit 170 closes the shut-off valve 121 (step 205) and ends the water injection operation. On the other hand, when it is determined that the amount of water for inspection tap water is less than the set value, the controller 170 continues the water injection operation (step 203).

It is assumed that the set time and the set water amount are initially set in the program or set in a storage unit (not shown) in the control unit 170 via the communication unit 160.

  In this way, the inspection tap water is automatically poured into the inspection container 130 at a certain date and time. Since the water meter is installed outside the private house or in the common part of the apartment, the inspector can obtain test tap water without requesting the residents of the house.

  In addition, the watering operation can be performed by an electronic message from an external device (not shown) such as a personal computer having a communication function. That is, the control unit 170 instructed to perform the water injection operation from an external device such as a personal computer via the communication unit 160 by wire or wireless opens the shut-off valve 121 so that the inspection tap water is circulated to the water injection pipe 120. When it is determined that a certain amount of water has been injected, the shutoff valve 121 is closed so as to shut off the water supply to the water injection pipe 120 and the water injection operation is terminated.

  The inspection container 130 has a structure that can be removed from the water meter main body 100, and has a structure that can be carried by an inspector to an office or the like that performs water quality inspection. If another inspection container is attached to the water meter main body 100 when the inspection container is removed from the water meter main body 100, water is poured into the inspection container at the next designated date and time.

  If it does in this way, when it wants to inject water other than a setting date, it will become possible to inject water by remote communication.

  As described above, when this embodiment is used, when a set fixed date and time is reached, a fixed amount of inspection tap water can be poured into the inspection container. In addition, when it is desired to inject water other than the set date and time, it is possible to inject water by remote communication. If this Example is used, it will not be necessary to ask a resident to obtain inspection tap water, but inspection tap water can be obtained. Moreover, even when a resident is absent, the inspection tap water can be obtained.

As described above, according to the present invention, it is possible to provide a water meter that enables an inspector to easily obtain test tap water.

The internal block diagram which shows the structure of Example 1 of the water meter by this invention The figure which shows the structure of the program concerning the water meter by this invention.

Explanation of symbols

100 Water meter body 110 Water channel 111 Metering unit 120 Water injection pipe 121 Shut-off valve 122 Metering unit 130 Inspection container 140 Display unit 150 Timer unit 160 Communication unit 170 Control unit

Claims (3)

A measuring means for measuring the amount of water used in the system to be measured;
A container for storing inspection tap water;
A water meter comprising water injection means for injecting tap water into the container. A first measuring means for measuring the amount of water used in the system to be measured;
A container for storing inspection tap water;
A timer that keeps time,
Water injection means for injecting tap water into the container when the timer reaches a set time;
A second metering means for measuring the amount of water flowing to the water injection means;
A water meter comprising: a shut-off means for shutting off the water injection means when the amount of water measured by the second metering means reaches a preset amount of water. A first measuring means for measuring the amount of water used in the system to be measured;
A container for storing inspection tap water;
A communication unit that receives messages from outside;
A water injection means for injecting tap water into the container when receiving a message instructing the water to be injected by the communication unit;
A second metering means for measuring the amount of water flowing to the water injection means;
A water meter comprising: a shut-off means for shutting off the water injection means when the amount of water measured by the second metering means reaches a preset amount of water.

Images