JP2011095999A - Work environment monitor system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a work environment monitor system which understands in what kind of environment those who carry cards are placed, and performs management of physical conditions of them. <P>SOLUTION: The work environment monitor system includes: a portable card which has a timing means which measures time, a temperature detecting means which detects temperature, and a storage part which associates the time data measured by the timing means with the temperature data detected by the temperature detecting means and stores them; an integral value computing means to compute a time integral value of the temperature data which satisfies a predetermined condition based on the data stored in the storage part (step S102); a comparison means which compares the time integral value of the temperature data computed by the integral value computing means, with a predetermined value (step S103); and a warning means which performs warning when the time integral value is larger than the predetermined value (step S104). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a work environment monitoring system that uses an IC card widely used in entrance and exit or the like to monitor the working environment of a field worker.

  Many workers engaged in construction work are engaged in heavy work in a harsh working environment. If the physical condition of the workers is not sufficient due to the influence of such a harsh working environment, problems with safety between workers may occur, or the quality of the work in charge may be reduced and the construction quality may deteriorate. It becomes. In other words, managing the health of workers is an important factor in managing the construction at the construction site.

  However, in the current work management, the extent to which measures are taken depending on the daily temperature is the limit. For example, the current situation is that attention is given at the time of the morning meeting to take care of replenishing water because the temperature is high today. In particular, there is no means to know under what working environment each individual worker has worked.

By the way, in recent years, performing entrance / exit management based on an ID card or the like when performing entrance / exit management at a site has been widely implemented. As a system for performing such entrance / exit management, for example, Patent Document 1 (Japanese Patent Application Laid-Open No. 2006-20877) includes a visitor information input device that receives input of visitor data for identifying a visitor, A card issuance instruction device that receives and displays the visitor data output from the visitor information input device and accepts input of instruction data indicating whether or not to permit card issuance from a terminal at the facility visit, and a card A system is disclosed that includes a card issuing device that writes permission data for permitting entry / exit to a recording medium provided in a card when instruction data permitting card issuance is received from the issuing instruction device.
JP 2006-20877 A

  However, in the conventional system, the main function is to manage the presence / absence of a person, and it is possible to grasp the environment in which each person was placed and manage the physical condition of the person. There was a problem that it was not possible.

  This invention solves the above-mentioned problem, and the invention according to claim 1 is characterized in that time measuring means for measuring time, temperature detecting means for detecting temperature, time data measured by the time measuring means, A portable unit having a storage unit that stores the temperature data detected by the temperature detection unit in association with each other, and based on the stored data, a time integration value of temperature data satisfying a predetermined condition is obtained. An integral value calculation means for calculating, a comparison means for comparing the time integral value of the temperature data calculated by the integral value calculation means with a predetermined value, and a warning when the time integral value is greater than the predetermined value And a work environment monitoring system.

The work environment monitoring system of the present invention calculates a time integral value of temperature data satisfying a predetermined condition based on temperature data detected by a temperature detection means built in a portable card, and the time integral value is predetermined. Since it is a system that warns when it is larger than the value, according to such a work environment monitoring system of the present invention, it is understood what kind of environment the person who carried the card was placed, It is possible to manage the physical condition of the person.

It is a figure explaining the outline | summary of the IC card used with the working environment monitor system which concerns on embodiment of this invention. The mode that the worker carries the IC card in the work environment monitoring system according to the embodiment of the present invention and engages in the work is shown. It is a figure which shows the structural example for the data processing in the working environment monitoring system which concerns on embodiment of this invention. It is a figure which shows the flowchart for the data processing in the working environment monitoring system which concerns on embodiment of this invention. It is a figure explaining the concept of heat accumulation _Hsum used with the working environment monitor system which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The main purpose of the work environment monitoring system according to the present embodiment is to manage the health of the workers involved in the construction work, thereby managing the construction at the construction site. In performing such management, an IC card is distributed to each worker, and the IC card is used to grasp the environment in which the person carrying the IC card was placed. I am doing so. Therefore, first, the work environment monitor according to the present embodiment is a diagram for explaining the outline of the IC card used in the work environment monitor system according to the embodiment of the present invention. In FIG. 1, 100 is an IC card, 102 is a bus, 103 is a ROM, 104 is a RAM, 105 is a non-volatile storage unit, 106 is a temperature detection unit, 107 is a timing unit, and 108 is a wireless communication unit. 1A shows the appearance of the IC card 100, FIG. 1B shows the block configuration of the IC card 100, and FIG. 1C shows the rewritable nonvolatile storage unit of the IC card 100. Each of the data structures 105 is shown in FIG.

  In the IC card 100, the CPU 101 is connected to each part in the IC card 100 through the bus 102. Among these, the ROM 103 is a non-rewritable nonvolatile memory storing a program for controlling each part of the IC card 100. The RAM 104 is a random access memory for temporarily storing communication data including temporary data and images necessary for executing the program.

  The non-volatile storage unit 105 is a memory that can be rewritten by a reader / writer such as a flash memory. The temperature detector 106 is a sensor that detects the temperature around the IC card 100, and the timer 107 can measure time and time. The temperature data detected by the temperature detection unit 106 and the time and time data measured by the time measuring unit 107 are stored in the nonvolatile storage unit 105.

  The wireless communication unit 108 has an antenna coil and is a unit for performing wireless data communication at a relatively close distance of about 10 cm or less. Information stored in the non-volatile storage unit 105 can be read by such a wireless communication unit 108. In addition, predetermined information can be written into the nonvolatile storage unit 105 via the wireless communication unit 108.

FIG. 1C schematically illustrates the storage contents of the rewritable nonvolatile storage unit 105 of the IC card 100. In such a nonvolatile storage unit 105, for example, “worker ID data” and “time-detected temperature data” can be stored as illustrated.
The “worker ID data” is data related to a unique ID assigned to each worker engaged in work on site, and the “time-detected temperature data” is measured by the time measuring unit 107. This is data in which time data is associated with temperature data detected by the temperature detection unit 106. This “time-detected temperature data” is stored in the IC card 100, that is, the IC card 1
The worker carrying 00 becomes history information of the temperature environment where the worker is placed.

In addition to the above “worker ID data” and “time-detected temperature data”, the non-volatile storage unit 105 can also store storage data useful for managing workers. .

  At the current construction site, it is becoming common to use an IC card or the like for the management of entry / exit. In the work environment monitoring system according to the present invention, such an IC card is further expanded to have the temperature recording function as described above.

For example, when managing construction on a construction site, the IC card 100 shown in FIG. 1 is prepared for the number of workers, and unique worker ID data is issued to each worker. Then, the IC card 100 in which the unique worker ID data is stored in the nonvolatile storage unit 105 is distributed to each worker. A worker carries the IC card 100 and performs an operation to engage in work. FIG. 2 shows a state where an operator carries an IC card in the work environment monitoring system according to the embodiment of the present invention and engages in the work. While the worker is engaged, the IC card 100 measures the measurement data by the timer 107 and detects the temperature of the work environment by the temperature detector 106. Then, during the work period, time-detected temperature data in which the time data measured by the time measuring unit 107 and the temperature data detected by the temperature detecting unit are associated is stored in the nonvolatile storage unit 105. As described above, the data relating to the temperature environment in which each worker is engaged in the work is accumulated and collected in the IC card 100 of each worker.

Next, 1 of the method of processing the data of the IC card 100 in which the temperature information of the working environment is recorded.
One will be explained. FIG. 3 is a diagram showing a configuration example for data processing in the work environment monitoring system according to the embodiment of the present invention. In FIG. 3, reference numeral 200 denotes a personal computer, and 210 denotes a card reader / writer connected to an appropriate interface of the personal computer 200. As the personal computer 200, a general computer that is currently widely used and includes an arithmetic device, a storage unit, a communication unit, and the like can be used. The card reader / writer 210 is connected to a USB interface or the like provided in the personal computer 200 and reads data in the non-volatile storage unit 105 of the adjacent IC card 100 based on a command from the personal computer 200. Or, data is written into the nonvolatile storage unit 105 of the IC card 100. In such a data processing system configuration example according to FIG. 3, the IC card 100 is placed on the card reader / writer 210, and the temperature environment for one worker stored in the IC card 100 from the card reader / writer 210. A state in which data is taken into the personal computer 200 is shown.

Next, data processing on the personal computer 200 side will be described in more detail. FIG. 4 is a diagram showing a flowchart for data processing in the work environment monitoring system according to the embodiment of the present invention. Such a flowchart is executed on the personal computer 200 side, and by executing such processing, it is determined whether or not the worker was engaged in work in an appropriate temperature environment. If inappropriate, a warning is issued.

  In FIG. 4, when the processing routine is started in step S100, the process proceeds to step S101. In step S101, the “worker ID data” and the “worker ID data” stored in the nonvolatile storage unit 105 of the IC card 100 are displayed. Read “Time-detected temperature data”.

  In the next step S102, a heat accumulation index representing how much time has been spent in the thermal environment is calculated. This heat accumulation is expressed as “a time integrated value of temperature data satisfying a predetermined condition” in the scope of claims as a higher concept.

This heat accumulation is an index indicating, for example, how much heat environment was exposed during work for a predetermined time (for example, one day, in the morning, etc.). The accumulated heat _Hsum is the temperature H with respect to the time axis.
(T) is a cumulative value, and for t where H (t)> H _stdmax , H _sum = Σ (H (t) −
H _stdmax ) · Δt is calculated. (However, Δt is the sampling time interval, and H _stdmax is the maximum temperature suitable for standard activities.) The larger the heat accumulation H _sum , the longer the working time was in a hot environment. Will be shown.

FIG. 5 is a diagram for explaining the concept of the heat accumulation H _sum used in the work environment monitoring system according to the embodiment of the present invention. Heat accumulation H _sum is to be the measure that indicates were extent work at a higher temperature environment than _H stdmax. More precisely, the heat accumulation _Hsum calculated in step S102 is a calculation of the area of the shaded portion in FIG. 5, and the larger this area, the longer it is exposed to a high temperature environment. It shows that.

In step S103, the heat accumulation H _sum obtained in step S102, is compared with the H _o is a predetermined value, whether the H _sum> H _o is satisfied or not. That is, in step S103, it is determined whether or not the worker's heat accumulation _Hsum exceeds a predetermined threshold value.

  In recent years, there have been many health hazards due to loads during outdoor work and activities such as heat stroke. In the determination step of step S103, for example, an appropriate threshold value may be set for the temperature and the heat accumulation value based on, for example, the occurrence of heat stroke.

  When the determination result in step S103 is YES, the process proceeds to step S104, and when the determination result is NO, the process proceeds to step S105.

In step S104, since the worker's heat accumulation _Hsum exceeds the threshold value and there is a concern about physical condition, a warning is displayed. In addition, as a method of executing such a warning notification process, a method by display on a display screen of the personal computer 200, a method by a sound generation device built in the personal computer 200, or a mobile phone owned by an operator A method of warning by sending an e-mail to a mobile terminal such as a telephone, or a worker managed by the supervisor is engaged in work in an inappropriate (high temperature) work environment on the mobile phone of the supervisor. However, there may be various modes such as a method of sending an e-mail indicating that it is necessary to pay attention to the physical condition.

In step S105, since the worker's heat accumulation _Hsum does not exceed the threshold value and there is no concern about physical condition due to the temperature environment during work, safety notification processing is executed. As a method of executing such safety notification processing, there can be various modes as in the case of step S104.

In step S106, a log of time-detected temperature data on the work day is stored for each worker ID data in a storage area such as a hard disk built in the personal computer 200, and the processing routine is ended in step S107. .

In the working environment monitoring system of the present invention as described above, as described so far, based on the temperature data detected by the temperature detection unit 106 built in the portable IC card 100, the temperature satisfying a predetermined condition. It calculates the time integral value of the data (heat accumulation H _sum), since the time integral value (the heat accumulation H _sum) is a system of warning is larger than a predetermined value,
According to such a work environment monitoring system of the present invention, it is possible to grasp the environment in which the person carrying the IC card 100 was placed and manage the physical condition of the person. Is possible.

  In addition, the work environment monitoring system of the present invention carries the IC card 100 capable of temperature recording, always records a history of what kind of temperature environment the worker has worked in, and performs worker management based on the data. The supervisor can monitor the data as appropriate, and can issue instructions to encourage appropriate measures when a specific worker continues working in a particularly high temperature environment. It becomes.

  In the above embodiment, the case where a physical condition problem occurs due to exposure of the worker to a high temperature environment has been described, but the work environment monitoring system of the present invention is used even when physical condition management is a problem in a low temperature environment. can do.

In this case, in the calculation of the heat accumulation in step S104 of the previous embodiment, H _sum = Σ | H (t) −H _stdmin | · Δt is calculated for t where H (t) <H _stdmin. do it. (However, Δt is a sampling time interval, and H _stdmin is a minimum value of temperature suitable for standard activities.) In addition, as a threshold value for determining the heat accumulation value in step S103, for example, The value may be determined based on the occurrence of frostbite.

  As described above, the work environment monitoring system of the present invention calculates the time integral value of the temperature data satisfying the predetermined condition based on the temperature data detected by the temperature detection means built in the portable card, and this time integral value Since this is a system that warns when the value is larger than a predetermined value, according to such a work environment monitoring system of the present invention, it is possible to grasp in what environment the person carrying the card was placed. However, it is possible to manage the physical condition of the person.

DESCRIPTION OF SYMBOLS 100 ... IC card, 102 ... Bus, 103 ... ROM, 104 ... RAM, 105 ... Nonvolatile memory | storage part, 106 ... Temperature detection part, 107 ... Time measuring part, 108 ... Wireless communication unit, 200 ... Personal computer, 210 ... Card reader / writer

Claims (1)

Time measuring means for measuring time, temperature detecting means for detecting temperature, time data measured by the time measuring means, and a storage unit for storing the temperature data detected by the temperature detecting means in association with each other. Having a portable card,
An integral value calculating means for calculating a time integral value of temperature data satisfying a predetermined condition based on the stored data;
A comparison means for comparing a time integral value of the temperature data calculated by the integral value calculation means with a predetermined value;
A work environment monitoring system comprising: warning means for giving a warning when the time integral value is larger than the predetermined value.

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