Method for installing communication device and communication device

Abstract

To provide a method for installing a communication device, capable of improving the state of wireless communication with a base station, and the communication device.SOLUTION: There is provided a method for installing a communication device. The method includes the steps of: placing the communication device in a predetermined space; closing a lid for closing the predetermined space; and measuring a wireless communication state between the communication device and a base station in a state where the lid is closed.SELECTED DRAWING: Figure 14

Description

[Technical field]

[0001] The present invention relates to a technology for a communication device that can be retrofitted to an object such as a meter. [Background technology]

[0002] 2. Description of the Related Art Meter reading devices for measuring the amount of water or other water used have been installed in homes, offices, and the like.

[0003] Also, a technology using a parasitic element for wireless communication is known. For example, Japanese Patent Laid-Open Publication No. 08-195609 (Patent Document 1) discloses an inverted F antenna built into a portable wireless device. According to Patent Document 1, in an inverted F antenna built into a portable wireless device having two parallel conductive plates, a metal layer is formed on the resin case surface of the portable wireless device parallel to the two conductive plates to form a parasitic conductive element. This parasitic element induces multiple resonance of the antenna, and the VSWR value decreases over a wide bandwidth, so that sufficient antenna characteristics can be secured even if the antenna configuration is made compact. The radiation of radio waves has directionality in the direction of the parasitic element. When this antenna is incorporated into a portable wireless device, by configuring the parasitic element to be arranged on the opposite side of the human body operating the portable wireless device, it is possible to radiate a large amount of radio waves without being adversely affected by the human body, and it is possible to prevent the antenna from posing a hazard to the human body.

[0004] Also, Japanese Patent Laid-Open Publication No. 07-022832 (Patent Document 2) discloses an antenna device. According to Patent Document 2, the antenna device is composed of an inverted-F antenna and a quarter-wavelength microstrip parasitic element having the same or slightly different resonant frequency as the inverted-F antenna, and the parasitic element is disposed so that its open end is parallel to and close to one side of the inverted-F antenna. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 08-195609 [Patent Document 2] Japanese Patent Application Publication No. 07-022832 Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the present invention is to provide a communication device installation method and a communication device capable of improving the state of wireless communication with a base station. [Means for solving the problem]

[0007] According to an aspect of the present invention, there is provided a method for installing a communication device, comprising the steps of: placing the communication device in a predetermined space; closing a lid for enclosing the predetermined space; and measuring a wireless communication state between the communication device and a base station with the lid closed. Effect of the Invention

[0008] As described above, according to the present invention, it is possible to provide a communication device installation method and a communication device capable of improving the state of wireless communication with a base station. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a conceptual diagram showing an overall configuration of a network system according to a first embodiment. [Diagram 2] 1 is a perspective view showing an appearance of a water meter box according to a first embodiment. [Diagram 3] 1 is a perspective view showing the inside of a water meter box according to a first embodiment. FIG. [Figure 4] 1 is a perspective view showing the inside of a water meter box in a state in which a communication device according to a first embodiment is fixed to the water meter with a cable tie; [Diagram 5] 1 is a front view showing a state in which a communication device according to a first embodiment is fixed to a water meter with a cable tie. [Figure 6]1 is a plan view showing a state in which a communication device according to a first embodiment is fixed to a water meter with a cable tie. [Figure 7] 1 is a front cross-sectional view showing mainly the mounting configuration of a parasitic element of a communication terminal according to a first embodiment. FIG. [Figure 8] FIG. 2 is a top view showing mainly the mounting configuration of a parasitic element of the communication terminal according to the first embodiment. [Figure 9] 1 is a block diagram showing main functions of a communication device according to a first embodiment. [Figure 10] 4 is a table illustrating correspondence relationship data according to the first embodiment. [Figure 11] 4 is a conceptual diagram showing switching of operation modes by a magnetic switch of the communication terminal according to the first embodiment. FIG. [Figure 12] 4 is a flowchart showing a method for installing a communication device according to the first embodiment. [Figure 13] 13 is a table illustrating correspondence relationship data according to the second embodiment. [Figure 14] 10 is a flowchart showing a method for installing a communication device according to a second embodiment. [Figure 15] 13 is a flowchart showing a method for installing a communication device according to a sixth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, the same components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated. <First embodiment> <Overall configuration of network system 1>

[0011] First, the overall configuration of a network system 1 according to the present embodiment will be described with reference to Fig. 1. The network system 1 according to the present embodiment mainly includes a measurement device 200, a communication device 100, a network 500, a center-side network control device 400, a center server 300, and the like.

[0012] The measuring device 200 is a meter for measuring the usage of water, gas, etc. The measuring device 200 stores the cumulative value of the usage up to now as the measurement result and outputs it to the outside.

[0013] The communication device 100 is a device that can be attached later around the measurement device 200. In this embodiment, the communication device 100 receives a measurement value of the measurement device via a wired signal cable, and transmits the measurement value to the server 300 via a base station of a carrier network by wireless communication.

[0014] The server 300 acquires metered values ​​from the communication device 100 via a network 500 such as the Internet, and calculates the usage of gas, water, electricity, etc. in each home, office, or building.

[0015] In this manner, in the network system 1 according to the present embodiment, by connecting the communication device 100 to the measurement device 200, the communication device 100 can provide the measurement values ​​obtained by the measurement device 200 to the server 300, instead of an operator visiting. Particularly, in the present embodiment, the communication device 100 can be easily grounded in the vicinity of the measurement device 200 in a good wireless communication state. <Water meter box configuration>

[0016] The following describes the configuration of the water meter box 10 in which the communication device 100 and the measurement device 200 according to the present embodiment are stored.

[0017] 2 to 4, water meter box 10 is composed of a substantially rectangular parallelepiped box body 11 and a lid 12. A water pipe 13 passes horizontally through the lower part of box body 11. Inside water meter box 10, water pipe 13, measuring device 200, communication device 100, valve 14, etc. are stored.

[0018] The measuring device 200 measures the amount of water flowing through the water pipe 13, stores the meter reading results in an internal memory, and periodically transmits the meter reading results to the communication device 100 via the communication cable 25.

[0019] 5 and 6, in this embodiment, communication device 100 is tied and fixed to the side of measurement device 200 using a cable tie 90. In this embodiment, cable ties 90, 90 are passed through mounting members 105, 105 provided on the side of housing 101 of communication device 100, and the cable ties 90, 90 are wrapped around measurement device 200.

[0020] The cable tie 90 is made by wrapping the belt portion 91 around an object to be attached and passing the tail at one end of the belt portion 91 through the head portion 92 at the other end to tighten it.

[0021] However, the method for fixing communication device 100 to measuring device 200 and within water meter box 10 is not particularly limited. <Communication device configuration>

[0022] Next, the configuration of communication device 100 will be described. With reference to Fig. 7 and Fig. 8, communication device 100 has housing 101 formed of substantially rectangular parallelepiped upper cover 102 and substantially rectangular parallelepiped lower cover 103. Upper cover 102 and lower cover 103 are preferably made of resin so as not to interfere with wireless communication.

[0023] A microcomputer, a wired communication interface (wired connector), a wireless communication antenna 160, an LTE module, a battery, etc. are provided inside the housing 101. As described later, the microcomputer includes a CPU, a memory, a plurality of terminals, etc.

[0024] In this embodiment, a relatively heavy battery 180 is disposed in the lower and central parts of the inside of the housing 101. A board 109 is disposed above the battery 180. A wireless communication antenna 160, a wired communication interface, an LED, a magnetic sensor, and the like are attached to the upper surface of the board 109. In this embodiment, a microcomputer, an LTE module, and the like are attached to the back side of the board 109.

[0025] Particularly in this embodiment, as shown in Fig. 7 and Fig. 8, conductor rings 161 and 162 as parasitic elements are detachably attached to the top surface of housing 101. First conductor ring 161 is, for example, a large-diameter ring having a resonant frequency of 800 MHz. Second conductor ring 162 is, for example, a small-diameter ring having a resonant frequency of 2 GHz.

[0026] More specifically, in this embodiment, convex members 101X, 101X protruding upward are formed on the upper surface of the housing 101. Grooves, i.e., recesses, are formed in the convex members 101X, 101X. A first conductor ring 161 and a second conductor ring 162 are inserted into the grooves, and caps 104, 104 are attached from above to the upper ends of the convex members 101X, 101X.

[0027] Particularly, in this embodiment, spacers 167, 167 are inserted between the conductor rings 161, 162 and the caps 104, 104. A serviceman who installs the communication device 100 can adjust the distance between the conductor rings 161, 162 and the housing 101 by inserting the spacers 167, 167 closer to the housing 101 or closer to the caps 104, 104 based on the communication strength between the communication device 100 and the base station. In other words, the distance between the conductor rings 161, 162 and the wireless communication antenna 160 can be adjusted. As a result, the communication strength between the communication device 100 and the carrier base station, i.e., the electric field strength of the wireless communication radio wave, can be increased.

[0028] Next, one aspect of the configuration of the communication device 100 will be described with reference to Fig. 9. The communication device 100 mainly includes a microcomputer 110, a wired communication interface 150, a wireless communication antenna 160, LEDs 130, 130, a magnetic sensor 140, and a battery 180. The microcomputer 110 includes a CPU (Central Processing Unit) 111, a memory 112, and the like.

[0029] The CPU 111 controls each unit of the communication device 100 in accordance with a program stored in the memory 112 .

[0030] The memory 112 stores a control program, a meter reading value acquired from the measurement device 200, an acquisition time, a measured electric field intensity, etc. In the present embodiment, for example, as shown in Fig. 10, the memory 112 stores correspondence data 112X between the electric field intensity and the lighting state of the LEDs 130, 130.

[0031] 9, the magnetic sensor 140 measures the magnetic force and inputs the measurement result to the microcomputer 110. The microcomputer 110 according to this embodiment accepts various commands depending on the time during which the magnetic force is being detected.

[0032] The LED 130 lights up or blinks a predetermined color of light according to instructions from the microcomputer 110. More specifically, in this embodiment, a transparent resin member is fixed to the upper surface of the upper cover 102 above the LED. This allows an operator to easily view the LED light from outside the housing 101.

[0033] As shown in Fig. 11, the communication device 100 accepts a selection command for one of various modes depending on the time that the worker turns on the magnetic switch carried by the worker. For example, in this embodiment, the microcomputer 110 of the communication device 100 waits in a self-check mode when the magnetic sensor 140 detects a magnetic force for two seconds. In this state, when the magnetic force cannot be detected, the mode is confirmed and the operation starts. In this case, the microcomputer 110 causes the right LED 130 to flash in red.

[0034] The microcomputer 110 of the communication device 100 continues to wait in the startup operation mode until the magnetic sensor 140 detects magnetic force for another 2 seconds. If the magnetic force becomes undetectable in this state, the mode is confirmed and the device starts. In this case, the microcomputer 110 turns off the right LED 130 and turns on the left LED 130 in green.

[0035] The microcomputer 110 of the communication device 100 continues to wait in the status confirmation operation mode until the magnetic sensor 140 detects magnetic force for another 2 seconds. If the magnetic force becomes undetectable in this state, the mode is confirmed and the operation starts. In this case, the microcomputer 110 causes the left LED 130 to flash green.

[0036] The microcomputer 110 of the communication device 100 continues to wait in sleep operation mode until the magnetic sensor 140 detects magnetic force for another 2 seconds. If magnetic force cannot be detected in this state, the mode is confirmed and the device starts. In this case, the microcomputer 110 also lights up the right LED 130 in green.

[0037] When the magnetic sensor 140 detects magnetic force for 10 consecutive seconds, the microcomputer 110 of the communication device 100 waits in the mode set at the time of shipment. When the magnetic force cannot be detected in this state, the mode is confirmed and the microcomputer 110 starts. In this case, the microcomputer 110 turns off the right LED 130 and makes the left LED 130 blink in orange.

[0038] Returning to FIG. 9, the wired communication interface 150 receives the meter reading value from the measurement device 200 via the communication cable 25 in accordance with an instruction from the CPU 111 .

[0039] The wireless communication antenna 160 transmits various types of information to the center server 300 via a base station of a carrier network in accordance with instructions from the CPU 111, and inputs commands and data from the center server 300 to the CPU 111. In this embodiment, the wireless communication antenna 160 transmits and receives data to and from base stations through LTE (Long Term Evolution) communication.

[0040] Each unit of the communication device 100 according to this embodiment is driven by power from a battery 180 .

[0041] With the above configuration, the CPU 111 according to this embodiment measures the electric field intensity using the wireless communication antenna 160 and displays the measurement results using the LEDs 130, 130 according to the mode and command received via the magnetic sensor 140. The CPU 111 also receives the meter reading value from the measuring device 200 via the wired communication interface 150 and stores it in the memory 112, and also transmits the meter reading value to the center server 300 using the wireless communication antenna 160 via a wireless communication base station, a carrier network, or the Internet. <How to install communication devices>

[0042] A detailed description will be given below of a method for installing the communication device 100 according to this embodiment. In this embodiment, a worker installs the communication device 100 in the water meter box 10 by performing the work shown in FIG.

[0043] First, the installer of the communication device 100 opens the cover 12 of the water meter box 10 (step S102).

[0044] An operator connects the communication cable 25 to the wired communication interface 150 of the communication device 100 (step S104). At this point, the communication device 100 may not be connected to the meter for communication.

[0045] The worker wraps communication device 100 around measuring device 200 with cable tie 90 (step S106).

[0046] In step S104, the communication device 100 does not have to be connected to the meter for communication. Then, in step S106, the meter may be temporarily fixed (by a band with Velcro (registered trademark) or the like). This is because installation may not be required if the electric field strength is poor. Also, instead of temporarily installing a terminal, a terminal-shaped electric field strength monitor may be temporarily installed to measure the electric field strength.

[0047] The worker uses a hand-held magnet to operate the communication device 100 and inputs a command to open communication with the server 300 (step S112).

[0048] The worker closes cover 12 of water meter box 10 (step S114).

[0049] When a few seconds, for example, 5 seconds, have elapsed since issuing the connection establishment command, the CPU 111 starts a connection with the server 300 by performing wireless communication with the carrier's base station using the wireless communication antenna 160 (step S116).

[0050] The CPU 111 measures the electric field intensity using the wireless communication antenna 160 and stores the measured value in the memory 112. The CPU 111 refers to the correspondence relationship 122 and turns on the LEDs 130, 130 in accordance with the measurement result (step S118).

[0051] After a predetermined time, the worker opens the cover 12 of the water meter box 10 and checks the light of the LEDs 130, 130 (Step S120). If the worker determines that the communication state is good (YES in Step S122), the worker closes the cover 12 again and ends the installation work (Step S140).

[0052] If the operator cannot determine that the communication state is good (NO in step S122), the operator opens the cover of the water meter box 10 (step S124).

[0053] The worker attaches the first conductor ring 161 or the second conductor ring 162 to the upper part of the housing 101 (step S126). Alternatively, the worker may change the vertical position of the first conductor ring 161 or the second conductor ring 162 by adding or moving a spacer 167.

[0054] The worker uses a handheld magnet to operate communication device 100 and inputs a command to measure the field strength of communication with the base station again (step S128).

[0055] The worker closes cover 12 of water meter box 10 (step S130).

[0056] The CPU 111 measures the field intensity of wireless communication with the carrier's base station using the wireless communication antenna 160, and stores the result in the memory 112. The CPU 111 refers to the correspondence relationship 122 and causes the LEDs 130, 130 to display the measurement result (step S132).

[0057] After a predetermined time has elapsed, the worker opens cover 12 of water meter box 10 and checks whether LEDs 130, 130 are illuminated (step S136).

[0058] If it is determined that the communication state is good (YES in step S138), the worker closes the lid 12 again to finish the installation work (step S140).

[0059] If the communication state cannot be determined to be good (NO in step S138), the worker repeats the process from step S124. More specifically, the worker opens the lid 120 and adds other conductor rings 161, 162, replaces the conductor rings 161, 162 with other conductor rings, or changes the position of the spacer 167. <Second embodiment>

[0060] In the above embodiment, when the electric field strength is low, the first conductor ring 161 and the second conductor ring 162 are attached or their positions are changed. However, when installing the communication device 100, the worker may measure the electric field strength under a plurality of types of conditions and adopt the condition that provides the best communication state.

[0061] In this embodiment, as shown in FIG. 13, memory 112 stores correspondence relationship data 112Y between changes in electric field intensity and the lighting state of LEDs.

[0062] Then, a worker installs the communication device 100 in the water meter box 10 by performing the work shown in FIG.

[0063] First, the installer of the communication device 100 opens the cover 12 of the water meter box 10 (step S102).

[0064] An operator connects the communication cable 25 to the wired communication interface 150 of the communication device 100 (step S104).

[0065] The worker wraps communication device 100 around measuring device 200 with cable tie 90 (step S106).

[0066] The worker uses a hand-held magnet to operate the communication device 100 and inputs a command to open communication with the server 300 (step S112).

[0067] The worker closes cover 12 of water meter box 10 (step S114).

[0068] When a few seconds, for example, 5 seconds, have elapsed since issuing the connection establishment command, the CPU 111 starts a connection with the server 300 by performing wireless communication with the carrier's base station using the wireless communication antenna 160 (step S116).

[0069] The CPU 111 measures the electric field intensity using the wireless communication antenna 160 and stores the measured value in the memory 112 (step S118).

[0070] After a predetermined time, for example, 30 seconds, the worker opens the lid 12 of the water meter box 10 (step S124), and attaches the first conductor ring 161 or the second conductor ring 162 to the upper part of the housing 101 (step S126). Alternatively, the worker may change the vertical position of the first conductor ring 161 or the second conductor ring 162 by adding or moving the spacer 167.

[0071] The worker uses a handheld magnet to operate communication device 100 and inputs a command to measure the field strength of communication with the base station again (step S128).

[0072] The worker closes cover 12 of water meter box 10 (step S130).

[0073] When several seconds have passed since the command, the CPU 111 measures the electric field strength of the wireless communication with the carrier's base station using the wireless communication antenna 160, and stores the result in the memory 112 (step S132).

[0074] The CPU 111 calculates the difference between the previous electric field intensity and the current electric field intensity (step S236). The CPU 111 displays the calculation result on the LEDs 130, 130 (step S238).

[0075] After a predetermined time, the worker opens cover 12 of water meter box 10 and checks the light of LEDs 130, 130 (step S252).

[0076] The worker adjusts the first conductor ring 161 or the second conductor ring 162 to the state that provided the better communication state (step S254).

[0077] The worker closes the lid 12 to complete the installation work (step S260).

[0078] In this embodiment, communication states under two conditions are compared, but three or more communication states may be compared by repeating the process from step S124 several times. <Third embodiment>

[0079] In the above embodiment, two types of conductive ring-shaped parasitic elements are attached to the top surface of housing 101. However, the parasitic elements may be rod-shaped or rectangular.

[0080] Alternatively, parasitic elements of a plurality of different shapes or parasitic elements of a plurality of sizes and thicknesses may be configured to be freely attached and detached. <Fourth embodiment>

[0081] In the above embodiment, the first conductor ring 161 and the second conductor ring 162 are detachably attached to the convex member 101X on the top surface of the housing 101. However, the parasitic element may be attached to the outer surface of the housing 101 by an operator using tape, adhesive, or the like. <Fifth embodiment>

[0082] In the above embodiment, the communication device 100 is attached to the water meter box 10 formed underground. However, the communication device 100 is not limited to being installed in an underground space. For example, the communication device 100 may be installed in a box provided on an outer wall of a building or a utility pole.

[0083] The parasitic elements may be detachably attached to the side or bottom surface of the housing 101, not limited to the top surface of the housing 101. Sixth embodiment

[0084] In the above embodiment, the communication device 100 itself directly displays the electric field strength of the wireless communication radio wave to the worker using the LED, but the present invention is not limited to this embodiment.

[0085] For example, the communication device 100 may transmit the measured field strength to the server 300, and the server 300 may display the field strength on a communication terminal held by an operator via the Internet or the like.

[0086] More specifically, in this embodiment, Figure 15 The communication device 100 is installed in the water meter box 10 by performing the operations shown in the steps 1 to 5.

[0087] First, the installer of the communication device 100 opens the cover 12 of the water meter box 10 (step S102).

[0088] An operator connects the communication cable 25 to the wired communication interface 150 of the communication device 100 (step S104).

[0089] The worker wraps communication device 100 around measuring device 200 with cable tie 90 (step S106).

[0090] The worker uses a hand-held magnet to operate the communication device 100 and inputs a command to open communication with the server 300 (step S112).

[0091] The worker closes cover 12 of water meter box 10 (step S114).

[0092] When a few seconds, for example, 5 seconds, have elapsed since issuing the connection establishment command, the CPU 111 starts a connection with the server 300 by performing wireless communication with the carrier's base station using the wireless communication antenna 160 (step S116).

[0093] The CPU 111 measures the electric field intensity using the wireless communication antenna 160 and stores the measured value in the memory 112 (step S118).

[0094] CPU 111 uses wireless communication antenna 160 to transmit the measurement result to server 300 (step S318). Server 300 transmits the measurement result to the communication terminal of the worker (step S320).

[0095] The worker checks the measurement result using the communication terminal he or she carries (step S322). If the worker determines that the communication state is good (YES in step S122), the worker ends the installation work (step S140).

[0096] If the operator cannot determine that the communication state is good (NO in step S122), the operator opens the cover of the water meter box 10 (step S124).

[0097] The worker attaches the first conductor ring 161 or the second conductor ring 162 to the upper part of the housing 101 (step S126). Alternatively, the worker may change the vertical position of the first conductor ring 161 or the second conductor ring 162 by adding or moving a spacer 167.

[0098] The worker uses a handheld magnet to operate communication device 100 and inputs a command to measure the field strength of communication with the base station again (step S128).

[0099] The worker closes cover 12 of water meter box 10 (step S130).

[0100] The CPU 111 measures the field strength of wireless communication with the carrier's base station using the wireless communication antenna 160 (step S132).

[0101] CPU 111 measures the electric field intensity using wireless communication antenna 160, stores the measured value in memory 112, and transmits the measured value to server 300 (step S334). Server 300 transmits the measured value to the communication terminal of the worker (step S336).

[0102] The worker uses the communication terminal to check the measurement result (step S338). If the worker determines that the communication state is good (YES in step S138), the worker ends the installation work (step S140).

[0103] If the communication state cannot be determined to be good (NO in step S340), the worker repeats the process from step S124. More specifically, the worker opens the lid 120 and adds another conductor ring, replaces the conductor ring with another conductor ring, or changes the position of the conductor ring. <Seventh embodiment>

[0104] In the above embodiment, the communication device 100 is fixed to the water meter in the water meter box 10 using the cable tie 90. However, the object to which the communication device 100 is fixed is not limited to a water meter, but may be various devices such as a gas meter, a vibration sensor, a noise sensor, each part of an electrical appliance, a vehicle, or other devices. Alternatively, the communication device 100 is not limited to being fixed to a device that performs wired communication with the communication device 100, but may be fixed to another building or structure. <Summary>

[0105] In the above embodiment, a method for installing a communication device is provided, the method including the steps of placing the communication device in a predetermined space, closing a lid to close the predetermined space, and measuring a wireless communication state between the communication device and a base station with the lid closed.

[0106] Preferably, the installation method further includes the steps of attaching a parasitic element to the outside of the communication device when the wireless communication status between the communication device and the base station is poor based on the measurement result, and measuring again the wireless communication status between the communication device and the base station with the lid closed.

[0107] Preferably, the installation method further comprises the step of adjusting the distance of the parasitic element from the communication device with reference to the measurement result.

[0108] Preferably, the predetermined space is formed by digging into the ground.

[0109] Preferably, the housing of the communication device has a waterproof structure. A magnetic sensor is mounted inside the housing for receiving a command to start measuring the wireless communication state.

[0110] Preferably, an LED is mounted inside the housing for displaying the result of the measurement toward the outside of the housing.

[0111] In the above embodiment, a communication device is provided that includes a housing, a wireless communication antenna disposed within the housing, and a parasitic element detachably attached to the outside of the housing.

[0112] Preferably, the antenna further comprises a second parasitic element having a length different from that of the parasitic element.

[0113] Preferably, a member for fixing the parasitic element is provided on the outside of the housing. The communication device further includes a spacer for adjusting the distance between the parasitic element and the housing by being inserted into the member.

[0114] Preferably, the communication device further includes a magnetic sensor arranged in the housing, an LED arranged in the housing, and a control unit arranged in the housing, and when the magnetic sensor recognizes a magnetic force for a predetermined period of time, the control unit attempts wireless communication through the wireless communication antenna, measures a wireless communication state with a base station, and causes the LED to emit light based on a result of the measurement.

[0115] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0116] 1: Network system 11: Box body 12: Lid 13: Water pipe 14: Valve 25: Communication cable 90: Cable tie 91: Belt section 92: Head section 100: Communication equipment 101: Housing 101X: Convex member 101Y: Recess 101Z: Plastic material 102: Top cover 103: Lower cover 104: Cap 105: Mounting material 106: O-ring 107: O-ring 108: Screw 109: Substrate 110: Microcomputer 111 :CPU 112: Memory 120: Memory 112X: Correspondence data 112Y: Correspondence data 130: LED 140: Magnetic sensor 150: Wired communication interface 160: Wireless communication antenna 161: First conductor ring 162: Second conductor ring 165: LTE module 167: Spacer 180: Battery 200: Measuring equipment 300: Center server 400: Center side network control device 500 : Network

Claims

1. A method for installing a communication device, comprising the steps of: placing the communication device in a predetermined space; A step of closing a lid to close the predetermined space; and measuring a wireless communication state between the communication device and a base station with the lid closed.

2. a step of attaching a parasitic element to an outside of the communication device when a wireless communication state between the communication device and a base station is poor based on a result of the measurement; The installation method according to claim 1 , further comprising the step of measuring again a wireless communication state between the communication device and a base station with the lid closed.

3. The installation method according to claim 2 , further comprising the step of adjusting a distance of the parasitic element from the communication device while referring to a result of the measurement.

4. The installation method according to claim 1 , wherein the predetermined space is formed by digging into the ground.

5. The housing of the communication device has a waterproof structure, The installation method according to claim 1 , further comprising the step of: mounting a magnetic sensor inside the housing for receiving a command to start measuring the wireless communication state.

6. The installation method according to claim 5 , further comprising: mounting an LED inside the housing for displaying the result of the measurement toward the outside of the housing.

7. A housing and a wireless communication antenna disposed within the housing; A communication device comprising: a parasitic element that is detachably attached to the outside of the housing.

8. The communication device according to claim 7 , further comprising a second parasitic element having a length different from that of the parasitic element.

9. a member for fixing the parasitic element is provided on the outside of the housing, The communication device according to claim 7 , further comprising a spacer for adjusting a distance between the parasitic element and the housing by being inserted into the member.

10. A magnetic sensor disposed within the housing; An LED disposed within the housing; A control unit disposed in the housing, 8. The communication device according to claim 7, wherein when the magnetic sensor recognizes a magnetic force for a predetermined period of time, the control unit attempts wireless communication using the wireless communication antenna, measures a wireless communication state with a base station, and causes the LED to emit light based on a result of the measurement.

Images