JP4446786B2 - Portable sensor system - Google Patents

Description

  The present invention relates to a portable sensor system that uses a portable sensor, and is suitable for use in inspection, maintenance, and patrol of equipment in manufacturing industries.

  Conventionally, in the manufacturing industry, especially in the steel process, there are processes that generate toxic gases. Therefore, during inspections, maintenance, and patrols, we carry gas detectors according to toxic gases to ensure safety. . It also carries a vibration meter for detecting abnormalities during inspection, maintenance, and patrol of rotating equipment, and in some cases, it also carries a contact-type thermometer. As described above, it is common to carry and use several portable sensors on-site as required.

  In addition to tools, flashlights, etc., recently, portable wireless terminals such as PHS for contact and mobile phones are indispensable as portable items, and the number of portable items tends to increase.

  Each of the above-mentioned portable items has been made compact and lightweight for portability. However, when carrying multiple types of these items, the weight and size of the items are considerable and burdens for workers to move. ing. There are also problems in terms of ensuring safety, especially when inspections, maintenance and patrol places include high places and pinch places. In addition, the portable sensor is generally intended only for simple measurement, and comparison and trend management using past data cannot be performed at the measurement site.

  Furthermore, with regard to the storage of measured data, in the case of most portable sensors, the data recorded in the memo pad etc. at the site is returned from the site, and then the data is stored on the management PC installed in the maintenance room. The actual situation is that the procedures are implemented and stored, and there are problems such as memos missing or miswritten, omission of registration to the management PC, or input errors.

  The present invention has been made in view of the above points, and its purpose is compact and lightweight, and it has excellent functionality such as comparison and trend management using past data, and storage of measurement data. It is to provide a portable sensor system.

The present invention has been made to solve the above-described problems, and the gist thereof is as follows.
(1) Two or more portable wireless terminals, a plurality of types of portable sensors equal to or more than the number of portable wireless terminals that can be attached to and detached from the portable wireless terminal, and a server that is wirelessly communicable with each portable wireless terminal and connected to a network with the door, the measurement data measured by the mobile sensors can be input directly into the portable wireless terminal, and the portable wireless terminal and said server is a mobile sensor system for transmitting and receiving data by wireless communication, the portable The sensor is a sensor including a toxic gas detector, and includes at least detection means among detection means and amplification means, and the portable wireless terminal stores storage means for storing measurement data input from the sensor, display means, and measurement data Measurement data of the gas concentration measured by the toxic gas detector having a GPS function and a first calculation means that performs calculation processing using GPS position information and measurement time are periodically transmitted to the server, and an alarm is issued when the gas concentration measurement data exceeds a predetermined concentration. The server receives from each of the portable wireless terminals. Second calculation means for obtaining gas concentration distribution based on measurement data of gas concentration and GPS position information, and information on past gas concentration, or meteorological information including wind direction and wind speed of measurement area obtained via the Internet A portable sensor system comprising: means for determining the risk of harm based on the above, and returning a warning or evacuation recommendation to each portable wireless terminal .
(2) In the portable sensor system according to ( 1), the portable sensor includes any one of a thermometer, a vibrometer, and a clamp meter, and the portable wireless terminal is measured by the sensor. Data, measurement location information, and time stamp are sent to the server, and the server receives the measurement data, measurement location information, and time stamp, and weather information including the wind direction and wind speed of the measurement area obtained via the Internet. Or, based on the operation information of the measurement location obtained from the control device that monitors and monitors the measurement location via the network, information for diagnosing the facility at the measurement location is obtained by computation processing, and the result of the computation processing is obtained by the mobile phone. reply to the wireless terminal, mobile sensor system that is characterized in that.

  According to the present invention, particularly when carrying a plurality of types of portable sensors for inspection, maintenance, patrol, etc., it is possible to reduce the size and weight, greatly contributing to reducing the load on inspectors and ensuring safety. be able to. In addition, since comparison with past data and trend management can be easily performed at the measurement site, inspection, maintenance, and patrol work can be speeded up and accuracy can be improved, thereby contributing to prevention of troubles. Furthermore, no special work is required in terms of data storage, and efficiency is improved and work accuracy is increased.

  As a result of various investigations, the inventors of the present application have developed a display function, an alarm function, a storage function, a calculation function, and a power supply function that occupy most of the general portable sensors in order to reduce the weight and size of the portable sensor. The conclusion was reached that the best mode would be to use only the detection unit in a removable manner. In general, the ratio of the size and weight of only the detection part of the portable sensor to the whole portable sensor is a fraction, and depending on the sensor type, it is 1/10 or less.・ Compactness is achieved. In addition, by using a portable wireless terminal for the shared part, it is possible to enjoy the latest technological advances related to the shared part. At the same time, in order to speed up inspection, maintenance, and patrol work, improve accuracy, prevent troubles, and improve efficiency when storing data, use the communication function of the above portable wireless terminal to communicate We came up with the idea that the solution would be to appropriately share the functions between the servers that are the other party and to exchange the information that each has. Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

(First embodiment)
FIG. 1 is a block diagram schematically showing the configuration of the portable sensor system of the first embodiment. Reference numeral 1 denotes a portable wireless terminal. In this embodiment, a PDA having a GPS function is used. The portable wireless terminal 1 includes a display unit 11, a connection part 12 with the portable sensor 2, an antenna 13, and the like. Reference numeral 2 denotes a portable sensor, which is used by being connected to the portable wireless terminal 1 with a dedicated connector 21. The sensor type of this embodiment is a CO gas detector 2A, which is used by being attached to a chest pocket of work clothes by a clip attached to the sensor.

  Reference numeral 3 denotes a server installed in a maintenance room or the like. Reference numeral 4 denotes a network such as the Internet, which is connected to the server 3. A control device 5 for monitoring the operation of the factory is connected to the server 3.

  The CO gas detector 2A is connected to the portable wireless terminal 1, and the CO gas detector 2A is brought into a measurement state by a predetermined operation of the portable wireless terminal 1, and the CO gas detector 2A is attached to a breast pocket, etc. Go out for maintenance and patrol work. The gas concentration measured by the CO gas detector 2, the GPS position information at that time, and the measurement time are periodically transmitted from the portable wireless terminal 1 to the server 3. When the predetermined concentration H is exceeded, the portable wireless terminal 1 issues an alarm and automatically notifies the server 3 of the gas concentration, the GPS position information at that time, and the measurement time.

  In the server 3, the measurement time is associated with the received gas concentration and GPS position information and stored. In addition, the server 3 stores the weather information (wind direction, wind speed, etc.) of the most recent area obtained from the Internet 4 by a predetermined procedure.

  Next, the server 3 comprehensively determines from the latest gas concentration received from the other group of portable sensors 2, past similar information, and the like, and automatically replies to the portable wireless terminal 1 to call attention. Furthermore, if the gas concentration exceeds the abnormal value HH, the gas leak location and the degree of leak are estimated from the gas concentration distribution (gas concentration received from the mobile sensor 2 group), wind direction and speed, etc. If there is a possibility that the accident will occur, an evacuation advisory is returned, and an instruction such as the direction of evacuation is returned to ensure safety. In addition, an alarm is issued to the control device 5 connected to the server 3 to notify the driver and to all concerned parties in the factory through a voice output device such as a voice annunciator (not shown).

(Second embodiment)
FIG. 2 is a block diagram schematically showing the configuration of the portable sensor system of the second embodiment. In the present embodiment, except for the sensor type of the portable sensor 2, the other configurations are the same as those in the first embodiment, and the components described above are denoted by the same reference numerals and detailed description thereof is omitted. The second embodiment shows an example of motor diagnosis, and the sensor types are a contact thermometer 2B, a vibration meter 2C, and a clamp meter 2D.

  After arriving near the motor to be diagnosed, the contact-type thermometer 2 </ b> B is connected to the portable wireless terminal 1. Of course, the CO gas detector 2A described in the first embodiment may be connected until it reaches the vicinity of the measurement location. The contact-type thermometer 2B is brought into a measurement state by a predetermined operation of the portable wireless terminal 1, and the temperature is measured by bringing the contact-type thermometer 2B into contact with the temperature measurement portion.

  Next, the portable sensor 2 is connected to the vibration meter 2C, the vibration meter 2C is brought into a measurement state by a predetermined operation of the portable wireless terminal 1, and the vibration waveform is measured by bringing the vibration meter 2C into contact with the vibration measurement location. The measurement location information is selected from the built-in information of the portable wireless terminal 1, and the measurement temperature, the measurement vibration waveform, and the measurement time are combined and transmitted to the server 3. In the server 3, a time stamp is added to the measured temperature, measured vibration waveform, and measured location information and stored. In addition, the FFT analysis is performed on the vibration waveform and the result is stored.

  At the same time, the clamp meter 2D is connected to another portable wireless terminal 1, the clamp meter 2D is set in a measurement state by a predetermined operation of the portable wireless terminal 1, and a current is measured by clamping the cable at the current measurement location in the electrical room with the clamp meter 2D. taking measurement. The measurement location information is selected from the built-in information of the portable wireless terminal 1 and the measurement current and the measurement time are combined and transmitted to the server 3. In the server 3, a time stamp is added to the measurement current and measurement location information and stored.

  In addition, the server 3 stores the weather information (temperature, humidity, etc.) of the most recent area obtained from the Internet 4 by a predetermined procedure. In addition, the server 3 stores operation information (rotating, non-rotating, presence / absence of load, etc.) obtained from the factory operation monitoring control device 5 in a predetermined procedure.

  Next, the server 3 performs calculation processing on the mobile wireless terminal 1 based on the above-described various data / information including the measurement data of other mobile wireless terminals 1 stored in the server 3 and various data / information (for example, The estimated remaining life of the motor).

The portable wireless terminal 1 comprehensively determines from various data / information / calculation processing results obtained from the server 3 and uses it for accurate motor diagnosis.

  As described above, especially when carrying a plurality of types of portable sensors 2 for inspection, maintenance, patrol, etc., the display unit and the storage unit are shared, so that the size and weight can be reduced. Since the advanced functions of the server 3 can be utilized at the measurement site, it is possible to greatly contribute to reducing the load on the inspector and ensuring safety. In addition, since comparison with past data and trend management can be easily performed at the measurement site, inspection, maintenance, and patrol work can be speeded up and accuracy can be improved, thereby contributing to prevention of troubles. Furthermore, no special work is required in terms of data storage, and efficiency is improved and work accuracy is increased.

  In the above-described embodiment, the example in which the connection between the portable sensor 2 and the portable wireless terminal 1 is a wired connection from the viewpoint of cost or the like has been described. In the above embodiment, it is assumed that the power of the portable sensor 2 is supplied from the portable wireless terminal 1. However, in consideration of the battery life of the portable wireless terminal 1, the portable sensor 2 with high power consumption is considered. It is also a preferred embodiment to incorporate a dedicated battery in the portable sensor 2.

  FIG. 3 is a block diagram illustrating an example of a computer system capable of configuring the server 3 described above. In the figure, reference numeral 1200 denotes a computer PC. The PC 1200 includes a CPU 1201, executes device control software stored in the ROM 1202 or the hard disk (HD) 1211, or supplied from the flexible disk drive (FD) 1212, and collects all devices connected to the system bus 1204. To control.

  Each functional unit of the present embodiment is configured by a program stored in the CPU 1201, ROM 1202, or hard disk (HD) 1211 of the PC 1200.

  A RAM 1203 functions as a main memory, work area, and the like for the CPU 1201. Reference numeral 1205 denotes a keyboard controller (KBC), which controls to input a signal input from the keyboard (KB) 1209 into the system main body. Reference numeral 1206 denotes a display controller (CRTC), which performs display control on the display device (CRT) 1210. Reference numeral 1207 denotes a disk controller (DKC), which is a hard disk (boot program (startup program: a program for starting execution (operation) of personal computer hardware and software)), a plurality of applications, editing files, user files, a network management program, and the like. HD) 1211 and flexible disk (FD) 1212 are controlled.

  Reference numeral 1208 denotes a network interface card (NIC) that exchanges data bidirectionally with a network printer, another network device, or another PC via the LAN 1220.

  The present invention is expected not only for industrial use but also for use in portable sensor systems for medical use, health / beauty use, and the like.

It is a block diagram which shows roughly the structure of the portable sensor system of 1st Example. It is a block diagram which shows roughly the structure of the portable sensor system of 2nd Example. It is a block diagram which shows an example of the computer system which can comprise a server.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable wireless terminal 2 Portable sensor 3 Server 4 Internet 5 Control apparatus 11 Display means 12 Connection part 13 Antenna 2A CO gas detector 2B Contact thermometer 2C Vibrometer 2D Clamp meter 21 Connector

Claims (2)

Two or more portable wireless terminals,
A plurality of types of portable sensors equal to or greater than the number of portable wireless terminals detachable from the portable wireless terminal;
A server that is wirelessly communicable with each portable wireless terminal and connected to a network, can directly input measurement data measured by the portable sensor to the portable wireless terminal, and the portable wireless terminal and the server are wirelessly connected. A portable sensor system that transmits and receives data by communication ,
The portable sensor is a sensor including a toxic gas detector, and includes at least detection means among detection means and amplification means,
The portable wireless terminal has storage means for storing measurement data input from the sensor, display means, first calculation means for performing calculation processing using the measurement data, and a GPS function, and the toxic gas detection The gas concentration measurement data, GPS position information, and measurement time measured by the meter are periodically transmitted to the server, and an alarm is issued when the gas concentration measurement data exceeds a predetermined concentration.
The server includes second calculation means for obtaining a gas concentration distribution based on gas concentration measurement data and GPS position information received from each portable wireless terminal, and information on past gas concentrations, or via the Internet. Provide a means to determine the risk of harm based on weather information including wind direction and wind speed of the measurement area obtained, and return a warning or evacuation advisory to each portable wireless terminal.
A portable sensor system. The portable sensor system according to claim 1,
The portable sensor includes any one of a thermometer, a vibrometer, and a clamp meter,
The portable wireless terminal transmits measurement data measured by the sensor, measurement location information, and a time stamp to the server,
The server is based on the received measurement data, measurement location information, and time stamp, obtained from the weather information including the wind direction and wind speed of the measurement area obtained via the Internet, or from the control device that monitors the measurement location via the network Based on the operation information of the measurement location, information for performing facility diagnosis of the measurement location is obtained by calculation processing, and the result of the calculation processing is returned to the portable wireless terminal.
Portable sensor system that is characterized in that.

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