JP2006233436A - Man-hole installation type data communication device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a man-hole installation type data communication device capable of making operation for a long period of time without enlarging a measuring device, at the same time, pliably installing the device according to the shape of a man-hole and simplifying maintenance work without being required for removing the measuring device even if a power source is interchanged. <P>SOLUTION: The man-hole installation type data communication device is so constituted that the measuring device 3 transmitting data to the outside from radio communications by collecting the data from a sensor 2 and a battery 4 supplying the power source to the measuring device 3 are respectively divided into separate units and that it is connected between both units with a power source cable 41 through a connector 33. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a data communication apparatus that is installed in a manhole and transmits data measured in the manhole by wireless communication.

  A conventional data communication device installed in a manhole connects a measuring device with a power source and a transmitter inside to an antenna mounted on the manhole cover, and the information measured by the sensor is transmitted to the outside via the antenna on the manhole cover. Was transmitting. (For example, refer to Patent Document 1).

JP-A-8-53878

  Since the data communication device installed in the conventional manhole has a built-in power supply in the measurement device itself as described above, it is necessary to increase the internal power supply in order to operate the measurement device for a long period of time. There is a problem that the device itself becomes large and it is difficult to install it in a limited space such as a manhole. In addition, when the power source is replaced, the measuring device itself must be removed and the internal power source must be replaced. Therefore, there is a problem in that maintenance work is troublesome.

  The present invention has been made to solve the above-described problems, and enables a long-term operation without increasing the size of the measuring apparatus, and allows the apparatus to be flexibly installed according to the shape of the manhole. It is an object of the present invention to provide a manhole-installed data communication apparatus that does not require removal of the measuring device even when the power is exchanged, and that facilitates maintenance work.

  The manhole-installed data communication device according to the present invention divides a measuring device that collects data from a sensor and transmits the data to the outside by wireless communication and a battery that supplies power to the measuring device in separate units. The two units are connected by a power cable via a connector.

  According to this invention, since the measuring device and the battery are divided into separate units, the measuring device and the battery can be separately installed in different locations, and can be flexibly adapted to the shape of the installation location. Can respond. In addition, since the connector is provided and the measurement device and the battery are connected by a cable, it is not necessary to remove the measurement device when replacing the battery, and a system with easy maintenance can be obtained.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing the configuration of the first embodiment. As shown in this figure, various pipes 12 and fire hydrants 13 are installed in a manhole 11 covered with a manhole cover 10, and information necessary for monitoring such as pressure and flow rate is provided by a sensor 2 attached thereto. It comes to measure.

  The sensor 2 is not only for measuring using a pressure gauge or a flow meter alone, but also for measuring differential pressure using two pressure gauges or measuring multiple items using multiple sensors. There is also.

  The manhole 11 also collects data measured by the sensor 2 and also has a measuring device 3 having a function of transmitting the data to the outside by wireless communication, and a manhole cover 10 attached to the measuring device 3. A manhole antenna 1 that is connected and wirelessly transmits data of the measuring device 3 to an external monitoring device 5 and a battery that is provided as a separate unit from the measuring device 3 and supplies operating power to the measuring device 3 and the sensor 2 4 is provided, and the battery 4 and the measuring apparatus 3 are connected via a connector 33 and a power cable 41.

  The monitoring device 5 is installed at an appropriate location outside the manhole, and acquires data collected by the measuring device 3 using a wireless line (including a public line such as a PHS or a mobile phone). The status can be monitored.

  The measurement device 3 includes a data collection unit 31 that collects data measured by the sensor 2 and a data transmission unit 32 that wirelessly transmits the data collected by the data collection unit 31 to the monitoring device 5 via the manhole antenna 1. The data collection unit 31 has a memory capable of storing data for a certain period (for example, about one month) inside, and periodically collects data from the sensor 2 and stores it in the internal memory. As a result, data is recorded even when there is a state where communication with the monitoring device 5 is temporarily impossible due to deterioration of the radio wave condition or the like, and therefore data for that period is collected from the monitoring device 5 after the communication becomes possible. can do.

  Since the first embodiment is configured as described above, the measuring device 3 and the battery 4 are configured as separate units and are connected via the connector 33 and the power cable 41. It can be installed separately according to the shape. For example, as schematically shown in the plan view of the manhole in FIG. 2, even if there is a fire hydrant 13 at the center of the cylindrical manhole 11, the housing of the measuring device 3 and the battery 4 can be simplified without making a special shape. It becomes possible to install in the space around the fire hydrant 13.

  Furthermore, since the battery 4 can be changed according to the measurement period and the shape of the installation place, it is possible to flexibly cope with the use. Further, since the measuring device 3 and the battery 4 can be easily attached and detached by the connector 33, even when the battery 4 is replaced, only the battery 4 can be removed and replaced, and the maintenance work is simplified.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to the drawings. In the above-described first embodiment, the case where the measuring apparatus 3 and the battery 4 are connected by the connector 33 and the power cable 41 has been described. However, in the second embodiment, as shown in FIG. 33 and 33A are provided so that a plurality of batteries 4 and 4A can be connected.

  If many batteries can be connected, it becomes easy to operate the measuring device 3 for a long period of time, and another battery can be replaced while at least one battery is connected. The battery can be replaced without stopping 3.

Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described with reference to the drawings. In the second embodiment described above, a configuration has been described in which a plurality of connectors 33 and 33A are provided in the measuring apparatus 3 so that a plurality of batteries 4 and 4A can be connected. However, the third embodiment is shown in FIG. In addition, a rechargeable internal battery 34 is provided in the measurement device 3 so that the battery 4 supplies power to the measurement device 3 and charges the internal battery 34.

  According to this embodiment, even if power is not supplied from the battery 4 for some reason, power can be supplied from the internal battery 34 to the measuring device 3. As described above, by providing the internal battery 34, it is possible to supply power to the measuring device 3 even when power cannot be supplied from the battery 4, and it is possible to replace the battery without stopping the device even when the battery is replaced. .

  Further, as shown in FIG. 5, when the commercial power supply 7 can be used in the manhole 11, the commercial power supply 7 is used instead of the battery 4 to supply power to the measuring device 3 and the internal battery 34. Charging can be performed. Further, even when the power supply from the commercial power supply 7 is lost due to a power failure, the apparatus can be operated without stopping.

Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described with reference to the drawings. In the third embodiment described above, a configuration has been described in which the internal battery 34 is provided in the measuring device 3 so that the device can be operated without stopping even when a power failure occurs due to the use of commercial power. As shown in FIG. 6, a solar power generation panel 9 is provided in the vicinity of the manhole, and the measurement apparatus 3 is moved using the electricity generated there, and the internal battery 34 is also charged. is there.

  When power generation by the solar power generation panel 9 cannot be performed at night or the like, the measurement apparatus 3 can be operated by the internal battery 34 and the apparatus can be continuously operated. Further, when the solar power generation panel 9 is operated, no other power source is required, so that the operation cost can be suppressed.

It is the schematic which shows the structure of Embodiment 1 of this invention. FIG. 3 is a schematic plan view showing a configuration viewed from above the manhole in the first embodiment. It is the schematic which shows the structure of Embodiment 2 of this invention. It is the schematic which shows the structure of Embodiment 3 of this invention. FIG. 10 is a schematic diagram illustrating another example of the third embodiment. It is the schematic which shows the structure of Embodiment 4 of this invention.

Explanation of symbols

1 manhole antenna, 2 sensor, 3 measuring device, 4 battery,
5 Monitoring device, 7 Commercial power supply, 8 Connection cable, 9 Solar power generation panel,
10 manhole cover, 11 manhole, 12 piping, 13 fire hydrant,
31 data collection unit, 32 data transmission unit, 33 connector,
34 Internal battery, 41 Power cable.

Claims (5)

  A sensor for measuring various data provided in a pipe or the like in a manhole, a measuring device provided in the manhole and configured to transmit data collected from the sensor to the outside by wireless communication, and in the manhole A manhole installation type characterized in that it is provided as a unit separate from the measurement device, and includes a battery for supplying power to the measurement device, and the measurement device and the battery are connected by a power cable via a connector. Data communication device.   2. The manhole-installed data communication apparatus according to claim 1, wherein a plurality of connectors are provided in the measuring apparatus, and a battery can be connected to each connector.   2. The manhole-installed data communication apparatus according to claim 1, wherein a rechargeable internal battery is provided in the measurement apparatus, and this is used as a part of the power supply of the measurement apparatus.   4. The manhole-installed data communication apparatus according to claim 3, wherein the internal battery can be charged from a commercial power supply terminal provided in the manhole.   4. A manhole-installed data communication apparatus according to claim 3, wherein a solar power generation panel is provided in the vicinity of the manhole, and the internal battery can be charged by electricity generated by the solar power generation panel.

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