JP4744379B2 - Failure status confirmation system and failure status confirmation method - Google Patents

Description

  The present invention relates to a system for confirming a failure state of a power facility using a watt-hour meter.

Conventionally, when conducting meter readings and troubleshooting of power facilities, power company personnel visit each customer's house and look around the power meters and power facilities installed at each customer's house. There was a need. In view of this, an information collection system based on power line conveyance that enables meter reading without going around each customer's house has been proposed (see Patent Document 1). According to this information collection system, information collected by power line transportation can be accessed from anywhere in the remote area.
JP-A-6-77861

  By the way, the information collecting system of Patent Document 1 can collect information anywhere as long as it is a terminal that can be connected to a public communication network using a telephone line. However, since it is wired data communication, it is more convenient than wireless communication. There is a problem of being bad. Further, Patent Document 1 does not describe a countermeasure after collecting information.

  The present invention has been made in view of the above problems, and a main object of the present invention is to provide means capable of knowing a failure state of a power facility of a consumer through wireless communication and responding to the failure state.

  In order to solve the above-described problem, the present invention stores a watt hour meter installed for each power consumer, a number and position data of the watt hour meter in a first storage unit in advance, and the power amount. A wireless communication device that acquires voltage data from a meter and stores the voltage data in the first storage unit; and a server that can communicate with the wireless communication device, wherein the server indicates a configuration of a power distribution system, and A second storage unit that stores distribution system data including a watt-hour meter number, and position data and voltage data for each watt-hour number acquired from the wireless communication device, and a demand that causes a failure of a power facility When the voltage data of the input unit that acquires the number of the watt hour meter installed in the consumer and the number of the watt hour meter stored in the second storage unit is normal for the house, the power Causes of equipment failure are indoor lines If the voltage data of the watt-hour meter number is not normal, the watt-hour meter number near the consumer is identified based on the distribution system data, and the identified watt-hour meter number A display that checks whether the voltage data of the power supply is normal and determines the cause of the failure of the power equipment that is not an indoor line failure, and a display that displays the cause of the failure of the power equipment determined by the processing portion And a section.

  According to this configuration, when there is a communication from the customer about the failure of the power equipment, it is possible to determine whether or not the cause of the failure is an indoor line failure before going out to the site. Unnecessary business trips can be reduced by, for example, asking the customer to operate the breaker. In addition, when it is not an indoor line failure, it is necessary to travel to the customer, but the cause of the failure is displayed. can do.

Further, the present invention is a failure status confirmation system, wherein the processing unit checks whether or not the voltage data is normal based on whether or not the voltage data is a predetermined value or more. To do.
According to this configuration, it is possible to easily check whether the voltage data is normal.

  Further, the present invention is a failure status confirmation system, further comprising a navigation terminal for displaying a route to the customer, wherein the second storage unit of the server further includes map data of a jurisdiction area. And the processing unit of the server transmits position data of the watt-hour meter and map data in the vicinity of the position data to the navigation terminal, and the navigation terminal receives the position data of the watt-hour meter and the watt-hour meter from the server. The map data is received, and a route starting from the current location specified by the GPS signal received from the GPS satellite or the position data received from the nearest wireless communication device and starting from the position data of the watt-hour meter is displayed on the map data. Is displayed.

  According to this configuration, since the position data of the private house that cannot be specified in detail by a normal navigation system can be acquired from the watt-hour meter wireless communication device via the server, the route to the consumer can be displayed. According to this, even if the user is not familiar with the geography around the customer, the user can reach the customer without hesitation, and the failure handling work is performed, so the failure time of the power equipment can be shortened.

  The present invention includes a failure status confirmation method. In addition, the problems disclosed in the present application and the solutions thereof will be clarified by the description of the best mode for carrying out the invention and the drawings.

  ADVANTAGE OF THE INVENTION According to this invention, the failure condition of a consumer's electric power equipment can be known by radio | wireless communication, and it can respond according to a failure condition.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. In the failure status confirmation system according to the embodiment of the present invention, a wireless communication device capable of communicating with a watt hour meter and a server installed at a power company sales office perform data communication via a wireless network. In response to a failure of a power facility (such as a power failure) from a customer, the customer will respond. Moreover, the terminal which can communicate with a radio | wireless communication apparatus and a server bears the one end as needed.

<< System configuration >>
FIG. 1 is a diagram showing the configuration of the failure status confirmation system 1. The failure status confirmation system 1 is configured such that one or more sets of watt-hour meters 2 and wireless communication devices 3, one or more terminals (navigation terminals) 4 and a server 5 are communicably connected via a wireless network 6. . The watt-hour meter 2 is a meter installed for each consumer, and is conventionally viewed by a person in charge at an electric power company at the time of meter reading. The wireless communication device 3 transmits data related to the watt hour meter 2 in response to a request from the server 5 or periodically while acquiring voltage data, current data, and the like from the primary side of the watt hour meter 2. The wireless communication device 3 is realized by a data transmission device or the like, but may be installed outside the watt hour meter 2 so as to be communicable or may be built in the watt hour meter 2. The terminal 4 is a terminal that is carried when a person in charge of an electric power company goes to a customer's house to deal with a failure and refers to a route to the customer's house. The terminal 4 is realized by a portable terminal such as a portable information device (PDA: Personal Digital Assistant) or a cellular phone having a navigation function. When the server 5 is installed at a power company sales office or the like and a customer reports that the power facility has failed, the server 5 receives data related to the watt-hour meter 2 of the customer's house from the wireless communication device 3, and the data The cause of the failure is displayed depending on the condition. The server 5 is realized by a server computer. The wireless network 6 is a wireless communication network that enables the wireless communication device 3, the terminal 4, and the server 5 to communicate with each other.

<< Device configuration >>
Next, the configuration of each device of the failure status confirmation system 1 will be described. First, FIG. 2 is a diagram illustrating a configuration of the watt-hour meter 2 and the wireless communication device 3. The watt hour meter 2 includes a voltmeter 21 and an ammeter 22. The voltmeter 21 measures voltage data every predetermined time and transmits it to the wireless communication device 3. The ammeter 22 measures current data every predetermined time and transmits it to the wireless communication device 3.

  The wireless communication device 3 includes a communication unit 31, a processing unit 32, and a storage unit 33. The communication unit 31 communicates with the terminal 4 or the server 5 via the wireless network 6 and is realized by a wireless network connection device or the like. The processing unit 32 controls the entire wireless communication device 3 and is realized by a CPU (Central Processing Unit) executing a program stored in a predetermined memory. The storage unit 33 stores data according to instructions from the processing unit 32 and reads the stored data, and is realized by a nonvolatile storage device such as a flash memory or a hard disk device.

  The storage unit 33 includes an instrument number 331, position data 332, voltage data 333, and current data 334 (hereinafter collectively referred to as watt-hour meter data). The meter number 331 is a number unique to the watt-hour meter 2 with which the wireless communication device 3 can communicate. As the role of this data, it is only necessary to be able to identify the watt-hour meter 2 installed in the customer's house, and for example, the contract number of the customer may be used instead of the meter number. The position data 332 is data indicating the position (latitude, longitude) of the watt-hour meter 2 with which the wireless communication device 3 can communicate. The instrument number 331 and the position data 332 are data stored in advance in the storage unit 33 when the wireless communication device 3 is installed so as to be communicable with the watt hour meter 2. The voltage data 333 is voltage data measured by the voltmeter 21 of the watt-hour meter 2. The current data 334 is current data measured by the ammeter 22 of the watt-hour meter 2. The voltage data 333 and the current data 334 are data that the processing unit 32 acquires from the voltmeter 21 and the ammeter 22 of the watt-hour meter 2 through the adapter 7 every predetermined time or as needed and stores them in the storage unit 33. The adapter 7 connects the voltmeter 21, the ammeter 22, and the processing unit 32, and may be provided between the watt-hour meter 2 and the wireless communication device 3 as shown in FIG. The power meter 2 or the wireless communication device 3 may be built in.

  Next, FIG. 3 is a diagram illustrating a configuration of the terminal 4. The terminal 4 includes a communication unit 41, an input unit 42, a display unit 43, a GPS signal receiving unit 44, a processing unit 45, and a storage unit 46. The communication unit 41 communicates with the wireless communication device 3 and the server 5 via the wireless network 6, and is realized by a wireless network connection device or the like. The input unit 42 receives an operation of inputting the meter number of the watt-hour meter 2 related to the customer's house that is the destination, acquires the meter number, and passes it to the processing unit 45. The input unit 42 is realized by an operation button or the like of the portable information terminal. The display unit 43 displays a route or the like shown on the map according to an instruction from the processing unit 45. The display unit 43 is realized by a liquid crystal display of a portable information terminal. The GPS signal receiving unit 44 receives a GPS signal (time information) transmitted from a GPS satellite, and passes the received GPS signal to the processing unit 44. The GPS signal receiving unit 44 may calculate the position data (latitude, longitude) of the terminal 4 from the GPS signal and pass it to the processing unit 44. The processing unit 45 controls the entire terminal 4 while exchanging data between the units, and is realized by the CPU executing a program stored in a predetermined memory. For example, the processing unit 45 stores the map data received by the communication unit 41 in the storage unit 46 or calculates the position data (latitude, longitude) of the terminal 4 from the signal received by the GPS signal receiving unit 44. The position data is stored in the storage unit 46. The storage unit 46 stores data or reads the stored data according to an instruction from the processing unit 45, and is realized by a nonvolatile storage device such as a flash memory or a hard disk device.

  The storage unit 46 stores map data 461, current location data 462, and destination data 463. The map data 461 is map data near the customer's house that is the destination (end point), and is data received by the communication unit 41 from the server 5. The current location data 462 is data indicating the current location (starting point), and may be data calculated from the GPS signal received by the GPS signal receiving unit 44, or the nearest wireless communication device 3 received by the communication unit 41. The position data 332 may be used. The destination data 463 is data indicating the destination (end point), and is position data of the watt-hour meter 2 received from the server 5 by the communication unit 41 corresponding to the instrument number acquired by the input unit 42. The processing unit 45 displays the map data 461, the current location data 462, and the destination data 463 stored in the storage unit 46 on the display unit 43, thereby showing a route from the current location to the destination on the map. Is displayed.

  Next, FIG. 4 is a diagram illustrating a configuration of the server 5. The server 5 includes a communication unit 51, an input unit 52, a display unit 53, a processing unit 54, and a storage unit 55. The communication unit 51 communicates with the wireless communication device 3 and the terminal 4 via the wireless network 6, and is realized by a wireless network connection device or the like. The input unit 52 receives an operation of inputting the meter number of the watt-hour meter 2 installed in the customer's house when receiving a failure notification of the power facility from the consumer, acquires the meter number, and the processing unit Pass to 54. The display unit 53 displays the cause of the failure of the power facility in accordance with an instruction from the processing unit 54. The processing unit 54 controls the entire server 5 while exchanging data between the units, and is realized by the CPU executing a program stored in a predetermined memory. The storage unit 55 stores data or reads the stored data according to an instruction from the processing unit 54, and is realized by a nonvolatile storage device such as a flash memory or a hard disk device.

  The storage unit 5 stores map data 551, distribution system data 552, instrument number 553, position data 554, voltage data 555, and current data 556. The map data 551 is map data that covers the jurisdiction of the sales office where the server 5 is installed. The distribution system data 552 is data indicating the configuration of the distribution system in the jurisdiction of the sales office where the server 5 is installed, and includes the meter number of the watt-hour meter 2 installed in each consumer. The instrument number 553, position data 554, voltage data 555, and current data 556 are the same as the instrument number 331, position data 332, voltage data 333, and current data 334 stored in the storage unit 33 of the wireless communication device 3, and are processed. This is data acquired by the unit 54 making a request to the wireless communication device 3 based on the instrument number passed from the input unit 52. The data may be acquired by the processing unit 4 from each wireless communication device 3 periodically or as needed.

≪System processing≫
FIG. 5 is a flowchart showing the processing of the failure status confirmation system 1. In the flowchart of FIG. 5, the processing of the server 5 will be mainly described, and the processing of the wireless communication device 3 and the terminal 4 will be described in the embodiment as necessary.

  First, the server 5 receives a failure notification related to the power equipment from the consumer (step S501). Next, the meter number of the watt-hour meter 2 installed in the customer's house that has received the failure notification is acquired (step S502). In the processing of step S501 and step S502, the processing unit 54 of the server 5 may acquire the failure communication and the instrument number from the input operation of the person in charge at the sales office via the input unit 52, or the communication unit 51 The failure notification and the instrument number may be received from a predetermined terminal used by the customer.

  And the server 5 requests | requires and acquires the watt-hour meter data of a consumer's house based on the meter number of the acquired watt-hour meter 2 (step S503). In this process, first, the processing unit 54 of the server 5 sends a watt-hour meter data request message including a meter number to the wireless network 6 via the communication unit 51. In the wireless communication device 3, the processing unit 32 receives the message via the communication unit 31 and determines whether the instrument number in the message matches the instrument number 331 stored in the storage unit 33. If they match, the watt-hour meter data is returned to the server 5. If they do not match, nothing is answered. In the server 5, the communication unit 51 receives watt-hour meter data from the wireless communication device 3 that is determined that the instrument number in the message matches the instrument number 331. Then, the processing unit 54 acquires the watt-hour meter data from the communication unit 51 and stores it in the storage unit 55 as the instrument number 553, the position data 554, the voltage data 555, and the current data 556.

  Subsequently, the server 5 requests and acquires watt-hour meter data around the customer's house based on the acquired meter number of the watt-hour meter 2 (step S504). Here, “the vicinity of the customer's house” means the same bank as the customer's house (the range in which one pole transformer supplies power), and refers to the distribution system data 552 stored in the storage unit 55. Thus, the meter number of the watt-hour meter 2 in the “around customer's house” is specified. Thereafter, the watt-hour meter data is acquired and stored in the storage unit 55 by performing the same procedure as in step S503. Note that the processing in step S503 and step S504 is not performed after receiving a failure notification from the customer, but is performed periodically, and watt-hour meter data for the past one week is stored in the storage unit 55. In addition, when a failure notification is received, the watt-hour meter data in the storage unit 55 may be referred to immediately. Further, the server 5 may periodically receive watt-hour meter data from each wireless communication device 3 without transmitting the watt-hour meter data request message.

  Therefore, the processing unit 54 of the server 5 refers to the voltage data 555 stored in the storage unit 55 and determines the cause of the failure of the power equipment while checking it. First, it is checked whether or not the voltage data 555 of the customer's house is greater than 0 (step S505). If it is not greater than 0, that is, 0 (NO in step S505), it is checked whether or not the voltage data 555 around the customer's house is normal (step S506). Here, whether or not the voltage data 555 is normal is checked based on whether or not the voltage data 555 is a predetermined value or more. If the watt-hour meter data is periodically stored in the storage unit 55, the meter number 553 of the watt-hour meter 2 around the customer's house is identified in step S506, and the voltage data 555 of the identified meter number 553 is identified. Need to check. If it is normal (YES in step S506), it is determined that there is a failure such as a lead-in wire (step S507). In this case, the cause of the determined failure may be displayed on the display unit 53 (hereinafter, the same applies when other failures are determined). On the other hand, if it is not normal (NO in step S506), it is determined that there is a failure such as a blown fuse in the protection device for the pole transformer (step S508).

  If the voltage data 555 at the customer's house is larger than 0 in the check in step S505 (YES in step S505), it is checked whether or not the voltage of only one phase is larger than 0 using a single-phase three-wire system (step S509). If the condition in step S509 is not met (NO in step S509), it is determined that the fuse is blown, the lead wire is broken, or the like (step S510). The failure determined in step S507, step S508, and step S509 needs to be handled by the person in charge of the power company going to the local customer's house. The navigation data is transmitted to the terminal 4 carried by the person in charge (step S511). Here, the navigation data indicates data necessary to display the route to the customer's house on the terminal 4, and among the map data 551 stored in the storage unit 55, the map data around the customer's house, and the customer's house This corresponds to the position data 554 of the watt-hour meter 2 installed at.

  In the terminal 4, the communication unit 41 receives navigation data from the server 5, and the processing unit 45 acquires navigation data and stores it in the storage unit 6 as map data 461 and destination data 463. Next, the processing unit 45 determines the position of the current location based on the position data of the watt hour meter 2 received from the nearest wireless communication device 3 by the communication unit 41 or the GPS signal received from the GPS satellite from the GPS signal receiving unit 44. Data is calculated and stored as current location data 462 in the storage unit 46. Then, the processing unit 45 specifies a route starting from the current location data 462 and ending at the destination data 463, and displays the specified route on the map data 461 on the display unit 43. Thereby, since the person in charge of the electric power company can know the route to the customer's house by referring to the display unit 43 of the terminal 4, even if it is not familiar with the geography of the vicinity of the customer's house, it will soon reach the customer's house. It is possible to arrive and to work on the failure promptly. The person in charge inputs the instrument number of the customer's house to be sent by the input unit 42 of the terminal 4, and the processing unit 45 of the terminal 4 transmits a navigation data request message including the instrument number to the server 5. You may make it receive navigation data from.

  If the condition in step S509 is satisfied (YES in step S509), the voltage of the watt-hour meter 2 installed in the customer's house is normal, so the processing unit 54 of the server 5 determines that an indoor line failure has occurred. (Step S512). In addition, when the voltage of the watt-hour meter 2 installed in the customer's house is equal to or higher than a predetermined value, it may be determined that the voltage is normal and an indoor line failure has occurred. If it is determined that there is an indoor line failure, it is assumed that the breaker has been dropped, so the customer is requested to perform a breaker operation (step S513). Specifically, a message requesting a breaker operation is transmitted to the telephone number or mail address of the customer. It is also possible that the processing unit 54 of the server 5 displays the cause of the failure determined in step S512 on the display unit 53, and the person in charge at the sales office looks at the cause of the failure and requests a breaker operation from the customer. It is done.

  Since the processing of steps S503 to S513 is performed through the wireless network 6, if the server 5 is installed in the sales office, or if the server 5 or an alternative device is installed in the vehicle, the location of the sales office, mobile vehicle, or the like Can be executed regardless.

  Although the embodiment of the present invention has been described above, in order to cause each unit of the wireless communication device 3, the terminal 4, and the server 5 to function, a program executed by each processing unit is recorded on a computer-readable recording medium, It is assumed that the failure status confirmation system 1 according to the embodiment of the present invention is realized by causing the computer to read and execute the recorded program. Note that the program may be provided to the computer via a network such as the Internet, or a semiconductor chip or the like in which the program is written may be incorporated in the computer.

  According to the embodiment of the present invention described above, the cause of the failure related to the power equipment can be specified as shown in steps S507, S508, S510, and S512. It is possible to study and prepare in advance about what should be done. Further, since the route to the consumer can be displayed on the terminal 4, even if the user is not familiar with the geography around the consumer, the consumer can be reached without hesitation. According to the above, it is possible to shorten the failure time and the power failure time.

  Since the watt-hour meter 2 is always installed in a household that uses power, it is easy to search for a private house. Therefore, the failure status confirmation system 1 can be used effectively for delivery such as mail or courier. Since there is a power source on the primary side of the watt-hour meter 2, the power source can be used for the wireless communication device 3 even in a home where the contract is abolished, and position data can be acquired.

<< Other embodiments >>
Although the best mode for carrying out the present invention has been described above, the above embodiment is intended to facilitate understanding of the present invention and is not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and equivalents thereof are also included in the present invention. For example, in the above-described embodiment, the voltage data of the watt hour meter 2 is used to determine the cause of the failure related to the power facility, but the current data of the watt hour meter 2 may be used. For example, by holding the current data for the past 24 hours, the total value of the current data of the watt-hour meter 2 installed in two or more consumers receiving power supply from the same transformer exceeds a predetermined value In such a case, it can be determined that the transformer fuse needs to be replaced. Based on the temporal change of the current data, it can be determined whether the cause of the blown fuse is due to a large short-circuit current or an overload.

It is a figure which shows the structure of the failure condition confirmation system. FIG. 2 is a diagram illustrating configurations of a watt-hour meter 2 and a wireless communication device 3. 3 is a diagram showing a configuration of a terminal 4. FIG. 3 is a diagram showing a configuration of a server 5. FIG. 3 is a flowchart showing processing of a failure status confirmation system 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Failure condition confirmation system 2 Electricity meter 3 Wireless communication apparatus 33 Memory | storage part (1st memory | storage part)
4 terminal (navigation terminal)
5 server 52 input unit 53 display unit 54 processing unit 55 storage unit (second storage unit)
551 Map data 552 Distribution system data 553 Instrument number (number of electricity meter)
554 Position data 555 Voltage data 6 Wireless network

Claims (4)

A watt-hour meter installed for each electricity consumer;
A wireless communication device that stores the number and position data of the watt hour meter in the first storage unit in advance, acquires voltage data from the watt hour meter, and stores the voltage data in the first storage unit;
A server capable of communicating with the wireless communication device;
Comprising
The server
A second storage unit that shows a configuration of the distribution system, stores distribution system data including a number of the watt-hour meter, and position data and voltage data for each number of the watt-hour meter acquired from the wireless communication device;
An input unit that obtains the number of a watt-hour meter installed in the customer for the customer in which the failure of the power facility occurs,
When the voltage data of the watt hour number stored in the second storage unit is normal, it is determined that the cause of the failure of the power facility is an indoor line failure, and the watt hour number If the voltage data is not normal, identify the watt-hour meter number near the consumer based on the distribution system data, and check whether the voltage data of the identified watt-hour meter number is normal A processing unit for determining the cause of the failure of the power facility that is not an indoor line failure;
A display unit for displaying the cause of the failure of the power facility determined by the processing unit;
A failure status confirmation system comprising: The failure status confirmation system according to claim 1, wherein the processing unit checks whether or not the voltage data is normal based on whether or not the voltage data is a predetermined value or more. A navigation terminal that displays a route to the consumer;
The second storage unit of the server further stores map data of a jurisdiction;
The processing unit of the server transmits position data of the watt-hour meter and map data near the position data to the navigation terminal,
The navigation terminal receives the watt-hour meter position data and the map data from the server, and starts from the current location specified by the GPS signal received from the GPS satellite or the position data received from the nearest wireless communication device, The failure status confirmation system according to claim 1 or 2, wherein a route whose end point is position data of the watt hour meter is displayed on the map data. A watt-hour meter installed for each electricity consumer;
A wireless communication device that stores the number and position data of the watt hour meter in the first storage unit in advance, acquires voltage data from the watt hour meter, and stores the voltage data in the first storage unit;
A server capable of communicating with the wireless communication device;
A method for confirming the failure status of a power facility by a system configured to include:
The server shows a configuration of the distribution system, and distribution system data including the watt-hour meter number, and position data and voltage data for each watt-hour meter number acquired from the wireless communication device are stored in a second storage unit. The step of storing in
The server obtains the number of a watt-hour meter installed in the consumer for the consumer in which the failure of the power facility occurs;
When the voltage data of the watt hour number stored in the second storage unit is normal, the server determines that the cause of the failure of the power facility is an indoor line failure, and the power amount If the voltage data of the meter number is not normal, identify the watt-hour meter number near the consumer based on the distribution system data, and whether the voltage data of the identified watt-hour meter number is normal Checking the cause of the failure of the power equipment that is not an indoor line failure,
The server displaying the determined cause of the failure of the power facility;
A failure status confirmation method comprising:

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