JP2011234003A - Base station and fault detection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To precisely measure an inclination of a base station device and automatically notify information on the measurement result to another device.SOLUTION: The base station device includes a body part and a stand having a plurality of measurement parts on which the body part can be horizontally mounted and the weight of the body part is measured. The base station device calculates a value related to a center of gravity of the body part based on the weight measured at the respective measurement parts and positional information of the measurement parts, compares the calculated value related to the center of gravity with a value related to a center of the gravity that is calculated based on the first weight measured at the respective measurement parts, and performs a predetermined notification operation to another device when the comparison result meets a predetermined condition.

Description

  The present invention relates to a base station and a base station failure detection method.

Base station equipment such as PHS (Personal Handy-phone System) with small and light output
Often installed on utility poles or building rooftops. For this reason, it is more susceptible to external influences such as strong winds and earthquakes than a device installed indoors, and the failure rate is high.

  A conventional base station apparatus includes a maintenance diagnosis unit. The maintenance diagnosis unit monitors the internal state of the base station device and attempts to recover autonomously when it detects a failure. In addition, the maintenance diagnosis unit notifies the base station management device, which is a higher-level device, of information related to the occurrence or recovery of the failure.

  Patent Document 1 listed below is a cellular phone having an Internet connection function and an e-mail transmission / reception function, and includes one or more types of means for detecting an abnormal situation or an emergency situation. A technology related to a mobile phone that receives and transmits the above information is disclosed.

JP 2005-311995 A

  A base station apparatus such as PHS may be tilted from the initial state of installation or may be overturned together with an installed power pole due to the influence of strong winds, earthquakes, or the like. However, since the conventional base station apparatus did not have a means for detecting its own inclination, unless a catastrophic failure such as a collapse that would result in disconnection of communication with the base station management apparatus occurred, the base station apparatus It was not possible to automatically detect that was tilted.

  The present invention has been made in view of the above-described conventional problems, and a base station capable of accurately measuring the inclination of a base station apparatus and automatically notifying information related to the measurement result to other apparatuses and a failure An object is to provide a detection method.

  In order to achieve the above object, a base station according to the present invention is a base station apparatus having a main body part and a gantry on which the main body part can be installed horizontally, and the load of the main body part on the gantry. A plurality of measurement units that measure the center of gravity of the main body based on the load measured by each of the measurement units and the position information of the measurement unit. Firstly measured by each of the measurement units stored in the storage unit, the storage unit that stores the calculation unit, the position information of each measurement unit, and the value related to the center of gravity calculated in the calculation unit. A comparison unit that compares a value related to the center of gravity calculated by the calculation unit based on a load and a value related to the center of gravity calculated by the calculation unit, and a comparison result of the comparison unit satisfies a predetermined condition Notification decision to make a predetermined notification to other devices It is characterized in that it comprises a part, a.

  Thereby, the inclination of the base station can be accurately measured, and information related to the measurement result can be automatically notified to other devices.

  In the base station according to the present invention, the notification determination unit is configured such that a comparison result of the comparison unit exceeds a preset first threshold value, and a comparison result of the comparison unit is set to a second preset value. The predetermined notification is sent to the other device when the threshold is exceeded.

  In the base station according to the present invention, when the comparison result of the comparison unit exceeds the first threshold, the notification determination unit shortens a cycle for causing the calculation unit to calculate a value related to the center of gravity. And

  In order to achieve the above object, a failure detection method for a base station according to the present invention includes a main body, and a gantry provided with a plurality of measuring units for installing the main body and measuring the load of the main body. A failure detection method for a base station apparatus, the step of calculating a value related to the center of gravity of the main body based on the load measured by each of the measurement units and the position information of the measurement units, A step of comparing the value related to the center of gravity calculated based on the load first measured by the measurement unit and the value related to the calculated center of gravity; and when the comparison result satisfies a predetermined condition, another device And a step of performing a predetermined notification.

It is a figure which shows the external appearance of the base station apparatus which concerns on this Embodiment. It is a functional block diagram of the base station apparatus which concerns on this Embodiment. It is a figure for demonstrating the process in the base station apparatus which concerns on this Embodiment. It is a flowchart figure which shows the operation | movement of the base station apparatus which concerns on this Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing an overview of a base station apparatus 10 according to the present embodiment. As shown in FIG. 1, the base station apparatus 10 includes a main body 20, a gantry 30, and a cable 50 that connects the main body 20 and each load cell 40 in the gantry 30. In FIG. 1, load cells (measuring units) 40 are attached to the four corners of the gantry 30, but the number of the load cells may be three or more, and the number of attachments should be set according to the required detection accuracy. Can do.

  FIG. 2 is a functional block diagram of base station apparatus 10 according to the present embodiment. As shown in the figure, the base station apparatus 10 includes a first communication unit 110, a second communication unit 120, an installation information acquisition unit 130, a control unit 140 (a calculation unit 142, a determination unit 144, a switching unit 146, A notification determination unit 148) and a storage unit 150.

  The first communication unit 110 has a wireless communication function, and performs wireless communication with a terminal device (not shown). The first communication unit 110 performs amplification processing, down-conversion processing, A / D conversion processing, demodulation, decoding, and error detection on the radio signal received from the terminal device, and outputs the obtained data to the control unit 120 . In addition, the first communication unit performs addition, encoding, modulation, and the like of an error detection code on the data output from the control unit 120, and the obtained digital signal is subjected to D / A conversion processing, up-conversion processing, And an amplification process is performed and a radio signal is transmitted to a terminal device.

  The second communication unit 120 has a wired communication function and transmits data received from the terminal device to the communication destination device via the network, while data transmitted to the terminal device is transmitted from the communication destination device via the network. Receive. Further, when a failure occurs in the base station apparatus 10 (in this embodiment, the base station apparatus 10 is tilted), alarm information is transmitted to an EMS (Element Management System) server.

  The installation information acquisition unit 130 acquires an electrical signal in which a load (force) detected by each load cell 40 attached to the gantry 30 is converted. Then, a value related to the load of each load cell 40 is acquired based on the acquired electrical signal, and is output to the control unit 140. In addition, acquisition of the value regarding the load of each load cell 40 is performed in a predetermined cycle.

  The control unit 140 includes, for example, a central processing unit (CPU) and a program that controls the operation of the CPU. The control unit 140 manages and controls the entire base station device 10 using a program stored in the storage unit 150, and performs wireless communication. When performing, the wireless communication with the terminal device is controlled. In addition, the control unit 140 functionally includes a calculation unit 142, a determination unit 144, a switching unit 146, and a notification determination unit 148.

  The storage unit 150 is configured by, for example, a semiconductor memory element, and stores programs, data, tables, and the like necessary for operation in the base station apparatus 10.

  Here, the functional configuration of the control unit 140 will be described in more detail.

  The calculation unit 142 uses the value related to the load of each load cell 40 output from the installation information acquisition unit 130 and the coordinates (position information) of each load cell 40 stored in the storage unit 150, so that the base station device 10 Calculate the value for the center of gravity. Then, the calculated value regarding the center of gravity is output to the determination unit 144. Further, the value related to the center of gravity is output to the storage unit 150 and stored in association with the calculation time, for example.

  FIG. 3 is a diagram illustrating an example of the arrangement of the load cells 40 of the gantry 30 in the base station apparatus 10. As shown in the figure, the coordinates of each load cell 40 are set based on a plane coordinate with the center of the gantry 30 as the origin, and the position information of each load cell 40 is stored in the storage unit 150 of the base station apparatus 10 in advance. Remembered. In addition, the base station apparatus 10 is installed such that the gantry 30 is horizontal, and the value related to the center of gravity calculated by the calculation unit 142 at the time of initial setting is stored in the storage unit 150 as an initial value. Then, the calculation unit 142 calculates values (Gx, Gy) related to the center of gravity using each value stored in the storage unit 150 and a value related to the load acquired in the setting information acquisition unit 130.

  The determination unit 144 determines whether or not the difference between the value related to the center of gravity calculated by the calculation unit 142 and the initial value of the value related to the center of gravity stored in the storage unit 150 exceeds a preset threshold (first threshold). The determination result is output to the switching unit 146 and the notification determining unit 148.

  The switching unit 146 changes the period for acquiring the value related to the load of each load cell 40 in the installation information acquisition unit 130 according to the determination result output from the determination unit 144. Specifically, when the determination result of the determination unit 144 indicates that the difference is within the threshold, the period is set to the normal period set in the normal time, while the difference indicates that the difference exceeds the threshold Is set to a cycle shorter than normal.

  The notification determining unit 148 determines that the base station device 10 is tilted or the open / close portion of the base station device is open according to the determination result output from the determining unit 144, and the second communication unit 120 , Output information about the failure to the EMS server. Specifically, when the determination result from the determination unit 144 indicates that the difference exceeds a threshold value (first threshold value) and exceeds a predetermined time (second threshold value), information on the failure is displayed. Decide to notify.

  FIG. 4 is a diagram illustrating an example of a failure detection process in the base station device 10. As shown in the figure, the base station apparatus 10 acquires a value related to the load (step S40), and calculates a value related to the center of gravity from the acquired value (step S41). The base station apparatus 10 compares the calculated value with the initial value of the value related to the center of gravity (step S42), and determines whether or not the difference is equal to or less than a preset threshold value (step S43). As a result of the determination, when the difference is equal to or smaller than the threshold value (corresponding to Step S43 Yes), the process proceeds to Step S40. On the other hand, when the difference exceeds the threshold value (corresponding to step S43 No), the cycle for acquiring the value related to the load is set to a cycle shorter than the normal time (S44).

  And the base station apparatus 10 acquires the value regarding a load (step S45), and calculates the value regarding a gravity center from the acquired value (step S46). The base station apparatus 10 compares the calculated value with the initial value of the value related to the center of gravity (step S47), and determines whether or not the difference is equal to or less than a preset threshold value (step S48). As a result of the determination, if the difference is equal to or smaller than the threshold value (corresponding to step S48 Yes), the period for obtaining the value related to the load is set to the normal period (step S49), and the process proceeds to step S40. On the other hand, if the difference exceeds the threshold (corresponding to step S48 No), it is further determined whether or not the time during which the difference exceeds the threshold continues for a predetermined period (step S4A). As a result of the determination, if it continues for a predetermined time (corresponding to step S4A Yes), notification of information regarding the failure is determined (step S4B). On the other hand, when it does not continue for the predetermined time (corresponding to step S4ANo), the process proceeds to step S45.

According to the base station apparatus 10 described above, it is possible to accurately measure the inclination and automatically notify information related to the measurement result to other apparatuses.
Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, functions included in each component, each step, and the like can be rearranged so as not to be logically contradictory, and a plurality of means and steps can be combined into one or divided. is there.

DESCRIPTION OF SYMBOLS 10 base station apparatus, 20 main-body part, 30 mount frame, 40 load cell, 50 cable, 110 1st communication part, 120 2nd communication part, 130 installation information acquisition part, 140 control part, 142 calculation part, 144 determination part, 146 switching Unit, 148 notification determination unit, 150 storage unit 150.

Claims (4)

A base station device having a main body and a gantry capable of horizontally installing the main body,
On the mount,
A plurality of measuring units for measuring the load of the main body, and
In the main body,
A calculation unit that calculates a value related to the center of gravity of the main body based on the load measured by each of the measurement units and the position information of the measurement unit;
A storage unit that stores position information of each measurement unit and a value related to the center of gravity calculated by the calculation unit;
A comparison for comparing the value related to the center of gravity calculated by the calculation unit and the value related to the center of gravity calculated by the calculation unit based on the load first measured by each measurement unit stored in the storage unit And
A notification determination unit that performs a predetermined notification to another device when a comparison result of the comparison unit satisfies a predetermined condition;
A base station comprising: When the comparison result of the comparison unit exceeds a preset first threshold value and the comparison result of the comparison unit continues beyond a preset second threshold value, the notification determination unit , Making the predetermined notification to the other device,
The base station according to claim 1. The notification determination unit shortens a cycle for causing the calculation unit to calculate a value related to the center of gravity when the comparison result of the comparison unit exceeds the first threshold value.
The base station according to claim 1 or 2, characterized in that A base station apparatus fault detection method comprising: a main body part; and a gantry including a plurality of measurement parts that can horizontally install the main body part and measure the load of the main body part,
Calculating a value related to the center of gravity of the main body based on the load measured at each of the measurement units and the position information of the measurement unit;
Comparing the value related to the center of gravity calculated based on the load first measured in each measuring unit and the value related to the calculated center of gravity;
When the comparison result satisfies a predetermined condition, performing a predetermined notification to another device;
A failure detection method for a base station, comprising:

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