JP4194357B2 - Electronic weighing device, electronic weighing device monitoring system, and communication terminal device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic weighing device, an electronic weighing device monitoring system, and a communication terminal device.
[0002]
[Prior art]
In the case where there are a side for supplying a medium such as electricity, gas, water, kerosene, and hot water and a side for using the medium, an electronic measuring device for measuring the amount of the medium used is generally set. This electronic metering device is a meter usually called a so-called electric meter, gas meter, water meter or the like. Hereinafter, the electronic weighing device is also referred to as a meter. Each meter that is used for such purposes has a predetermined valid period for verification. For this reason, normally, once the meter itself is installed, it is assumed that the meter is exchanged with the validity period of the test. Also, most of the meters have a built-in microcomputer section, but an operation program for executing a predetermined operation function in the microcomputer section is stored in a non-rewritable ROM (Read Only Memory). It was. As a result, in the meter after installation, the function of the microcomputer unit cannot be newly added. For the new function, the meter can be replaced with a new meter without waiting for the meter replacement period, or the meter can be replaced after the replacement period. It was assumed that the new function could not be used until it was replaced.
[0003]
From the user's point of view, if you want to use a meter with a new function, replace the meter before the expiration date after accepting the extra cost, or after the replacement expiration date after a certain period of time. , It is an alternative to replace the meter. In other words, the new function cannot be enjoyed for an arbitrary period only at the price related to the addition of the new function of the meter. On the other hand, from the viewpoint of supplying media, improvements to the security system associated with new meter functions, convenience improvements related to fee setting and fee collection, etc. are added to all installed meters at once. I want to make it possible. Because, even if a new function can be added to only some of the installed meters, it will take several years until it can be added to all meters, and a new new function may appear in the meantime. Because.
[0004]
Therefore, conventionally, there has been proposed a program in which all operation programs for executing a predetermined operation function in a microcomputer unit incorporated in a meter are stored in a storage unit such as a rewritable ROM (Japanese Patent Laid-Open No. 2001). -243581). This proposal made it possible to rewrite and add operation programs for new functions.
[0005]
[Patent Literature]
JP 2001-243581 A
[0006]
[Problems to be solved by the invention]
However, the above proposal stores all operation programs related to the functional operation of the meter in a rewritable storage unit. Therefore, for example, the operation program related to the measurement of the medium is also stored in the rewritable storage unit. In the current situation where charges are collected based on the measured values of the medium in the meter, the transparency related to the charge collection is It will not be reliable. Furthermore, when an operation program for a certain function is changed, there is a problem of how to secure the function operation during the change work. In particular, since the security function is a function related to the safety of the user, it can be said that securing the functional operation is important.
[0007]
An object of the present invention is to enable addition of a new function without waiting for a replacement deadline, and an electronic weighing device, an electronic weighing device monitoring system, and communication suitable for ensuring reliability related to charge collection by a user An object is to provide a terminal device.
[0008]
[Means for solving the problems and actions / effects]
An electronic weighing device of the present invention for solving the above problems is as follows.
In an electronic weighing device having a weighing function for weighing a medium amount of a medium passing therethrough and an additional function used for the convenience of the supplier and / or user of the medium,
Control means for controlling the weighing function and the additional function;
A first storage means for storing an operation program used by the control means and a second storage means for which rewriting is disabled;
With
An operation program related to the weighing function is stored in the first storage means, and an operation program related to the additional function is stored in the second storage means.
[0009]
The electronic metering device of the present invention is a meter generally called as an electric meter, a gas meter, a water meter or the like. That is, the first thing is to measure the amount of medium such as electricity, gas, water, kerosene, hot water, etc. that passes through it. Therefore, first, the present invention has a measuring function for measuring the medium amount of the passing medium. Further, it has an additional function used for the convenience of the medium supplier and / or user. Further, a control means for controlling the weighing function and the additional function, a non-rewritable first storage means for storing an operation program used by the control means, and a second storage means capable of being rewritten are provided. Prepare. Thus, in the present invention, the operation program related to the functional operation of the meter is appropriately stored in either the non-rewritable first storage means or the rewritable second storage means. The operation program related to the weighing function is stored in the first storage means. As a result, it is possible to effectively prevent the possibility that the operation program related to the weighing function will be rewritten, and to make the meter maintain the reliability without giving the user any extra distrust related to charge collection. it can. Further, the operation program related to the new service added to the meter is stored in the second storage means as a program related to the additional function. As a result, a meter that can appropriately respond to the provision of new services can be obtained. That is, it is possible to freely change the operation program related to the new service, such as rewriting and addition. By using a meter having such a configuration requirement, it is possible to provide a new service while maintaining reliability with respect to the weighing function.
[0010]
Next, the electronic weighing device according to the present invention has a warning for ensuring the safety of the user of the medium and / or a security function for shutting off the supply of the medium, and the operation program related to the security function is stored in at least the first storage means. When the operation program related to the security function is changed in advance, when the operation program related to the security function is changed, the changed operation program changed in accordance with the change is stored in the second storage means. The security function is controlled by the post-operation program, and the security function is stored by the operation program related to the security function stored in the first storage means during the operation of storing the post-change operation program in the second storage means. It is characterized by controlling.
[0011]
The meter is legally obligated to have a safety warning for the user of the medium and / or a security function for cutting off the supply of the medium. Therefore, in the present invention, the operation program related to the security function is stored in advance in at least the first storage means. When the operation program related to the security function is changed, the changed operation program changed with the change is stored in the second storage means, and after the change, the changed operation program is stored. Control the safety function. Here, when the operation program related to the security function is stored in advance in the second storage means together with the first storage means, the changed operation program is rewritten by rewriting the operation program stored in advance in the second storage means. Alternatively, the changed operation program may be newly stored in the second storage unit. Of course, when the operation program related to the security function is not stored in the second storage means in advance, the changed operation program is newly stored in the second storage means. With the changed operation program stored in the second storage means in this way, the security function is controlled after the change. Further, here, during the operation of storing the changed operation program in the second storage unit, the security function is controlled by the operation program related to the security function stored in the first storage unit. As a result, even when it is necessary to change the operation program related to the security function that plays the role of ensuring the safety for the user, it is possible to change the operation program in a state where the security function can be executed. .
[0012]
Furthermore, it is desirable that the operation program related to the security function is stored in advance in the first storage means and the second storage means. As a result, when changing the operation program related to the security function, it becomes possible to create an operation program after change by simply rewriting the operation program stored in advance in the second storage means. It is possible to shorten the work time compared to storing in the second storage means. In this case, the security function is controlled by the operation program related to the security function stored in the first storage means during and before the operation of storing the changed operation program in the second storage means. And it is sufficient.
[0013]
Next, in the electronic weighing device of the present invention, a first communication terminal that can be connected to a monitoring center that supervises and monitors the electronic weighing device and a first communication terminal device that performs data communication via a public line. An interface unit; and a second interface unit connectable to a second communication terminal device that outputs program information to be a rewritable operation program stored in the second storage means, To do.
[0014]
Normally, installed meters are supervised by the monitoring center. Specifically, the meter and the monitoring center can communicate with each other via a public line (for example, a telephone line). Therefore, the meter and the monitoring center are connected via a public line. The communication terminal device is arranged. And the monitoring system which can be suitably adapted to security maintenance is acquired by acquiring alarm signals, such as gas leaks, which are transmitted from the meter to the monitoring center. In order to enable data communication with such a monitoring center, the meter has at least a first interface connectable to a first communication terminal device for performing data communication with the monitoring center via a public line. Department is provided. Here, the communication speed between the first interface unit and the first communication terminal device is, for example, 200 bps for a liquefied petroleum gas meter and 300 bps for a city gas meter, among technical standards established within each industry. In a water meter, a low speed is determined such as 300 bps. However, at such a low communication speed, the amount of information handled when a new operation program is downloaded to the second storage means is changed due to rewriting or addition of the operation program stored in the second storage means. In some cases, the work cannot be performed efficiently. Therefore, the meter of the present invention further includes a second interface unit connectable to a second communication terminal device that outputs program information to be a rewritable operation program stored in the second storage means. It becomes. Between the second interface unit and the second communication terminal device, data communication is possible at a speed higher than at least the communication speed between the first interface unit and the first communication terminal device. It is supposed to be. For this purpose, for example, in the public line that handles a high-frequency region that enables a higher communication speed than the public line that connects the first interface unit and the first communication terminal device, And a rewritable operation program stored in the second storage means in the second interface unit on the spot by connecting the communication terminal device to the mobile communication terminal device and the second communication terminal device A method of outputting program information to be used can be employed.
[0015]
It is also possible to arrange the first communication terminal device and the second communication terminal device described above as the same communication terminal device. In that case, the communication terminal device is a connection terminal that individually handles a high-speed communication line connected to the second interface unit and a conventional low-speed public line connected to the first interface unit. What is necessary is just to have. In other words, first, if the meter includes a first interface unit connected to a conventional low-speed public line and a second interface unit that handles at least higher-speed data communication. As a result, the rewritable operation program can be efficiently stored from the outside of the meter in the second storage means.
[0016]
The second communication terminal device is preferably a portable terminal device, that is, the second interface unit outputs program information to be a rewritable operation program stored in the second storage means. It is desirable to be connectable to a portable terminal device. In this way, by making the second interface unit connectable to the mobile terminal device, for example, even in a region where it is difficult to newly lay a high-speed communication line, a new that can be easily added to the meter on the spot. The operation program relating to the service can be stored in the second storage means as a program relating to the additional function. As a result, the usefulness of the meter of the present invention can be further expanded.
[0017]
Next, in the electronic weighing device of the present invention, the weighing function, the additional function, or the security function is based on a critical reference value set in advance in the data pattern of the weighing data obtained by operating the control means. When a specific pattern change is detected, a change request function for requesting an external operation program change through the interface unit is provided.
[0018]
When operating the weighing function, the additional function, or the security function using the control means, the operation program stored in the first storage means or the second storage means is appropriately selected and operated. Then, the data pattern of the measurement data obtained by this operation is stored in a rewritable storage unit (for example, second storage means) included in the meter as a function of the operation time. In this data pattern, if a specific pattern change based on a preset critical reference value is detected, there is a possibility that there is a problem with the compatibility of the operation program used. A program change is requested externally (change request function). By giving the change request function to the meter in this way, if the operation program is stored in the second storage means, it is possible to quickly cope with the change of the operation program such as rewriting or addition of the operation program. If it is an operation program related to the weighing function stored in the first storage means, for example, the meter being used may not match the user's usage, and the meter can be changed quickly. It becomes possible to do. In this way, the usefulness of the meter can be further increased.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments according to the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic configuration diagram showing an embodiment of an electronic weighing device (hereinafter also simply referred to as a meter) of the present invention. As shown in the figure, a meter 100 includes a control unit (CPU) 1 for controlling operation functions in the meter 100, a first storage unit 2 for storing non-rewritable operation programs used in the control unit 1, and rewriting A second storage unit 3 for storing possible items is provided. Here, for example, the first storage unit 2 is a non-rewritable ROM, and the second storage unit 3 is a RAM (Random Access Memory), an EPROM (Erasable Programmable Read-Only Memory), an EEPROM (Electrically Erasable Programmable Read- Only Memory) can be used.
[0020]
As described above, the operation function of the meter is controlled by the control unit 1 which is a control means. Next, the main function of the meter of the present invention will be described with reference to FIG. First, the metering function detects the operation of metering means (not shown) (for example, a metering membrane for a gas meter and an impeller for a water meter) by an MR (Magnetic Resistance) sensor or the like constituting the sensor unit 11, and a supply pipe (not shown) This is done by measuring the amount of media passing through. Specifically, a signal input from the sensor unit 11 to the control unit 1 is detected as a medium passing amount and stored in the memory 14, for example. Here, the memory 14 is configured by a rewritable RAM or the like. The integrated value of the medium passing amount stored in the memory 14 is calculated by the CPU constituting the control unit 1 and stored in the memory 14 and displayed on the display unit 10 or externally via the interface unit 4. Can be output. In this way, if the integrated value of the medium passage amount is output to the outside, the amount of medium used can be known externally, so that it is not necessary to go to the site. Here, the display unit 10 is a liquid crystal display device that can be controlled by the control unit 1 or a number wheel that can be driven by a motor, but is not necessarily required, and a number wheel that is mechanically linked to the operation of the weighing means. Such mechanical display means may be used. Furthermore, the configuration may be such that the integrated value data of the medium passing amount and the like are simply output to the outside via the interface unit 4 without providing the display unit. Such an operation program related to the weighing function is stored in the first storage unit 2 serving as a first storage unit. And the control part 1 reads an operation program from the 1st storage part 2 as needed, and performs measurement operation | movement. Here, as the operation program related to the weighing function stored in the first storage unit 2, for example, the output of the sensor unit 11 is multiplied by a predetermined coefficient to obtain the integrated amount of the medium passing amount, or the CPU that performs the control unit 1. In other words, the instantaneous passage amount of the medium passage amount is obtained based on a timer function using a clock signal incorporated in the medium.
[0021]
Next, the security function will be described. The security function is mainly related to the sensor unit 11. Specifically, for example, in response to a signal related to the amount of medium passing from an MR sensor or the like constituting the sensor unit 11 described above, the use status of the medium is monitored, and an alarm is given when there is an abnormality (for example, a display unit) 10 is displayed on the screen 10, an alarm signal is output to the outside via the interface unit 4), and / or the supply of the medium is shut off by the shut-off valve constituting the shut-off unit 12. . Here, when an alarm signal is output to the outside via the interface unit 4, if an alarm device is connected to the interface unit 4, the alarm device that has received the alarm signal can be sounded. 4 and, for example, an external monitoring center can communicate data with each other via a communication terminal device, the alarm signal transmitted from the interface unit 4 serves as a report. And based on this report, by transmitting a gas cutoff signal or the like from the outside to the interface unit 4 through the communication terminal device as appropriate, the control unit 1 receives it and configures the cutoff unit 12 itself. It is also possible to transmit a gas cutoff signal for shutting off the supply of the medium by the cutoff valve.
[0022]
The operation program related to the security function as described above is stored in the first storage unit 2 and / or the second storage unit 3. Further, as the operation program, the control unit 1 calculates an instantaneous passing amount, a medium usage time, and the like based on a signal related to the passing amount of the medium from the sensor unit 11, and sets a preset critical reference amount, When it is determined that the critical reference value has been exceeded by comparing it with a critical reference value such as a critical use reference time or a critical use reference period (for example, 30 days) that can be used in general, For example, it transmits a signal for blocking. Here, the security function related to the medium passing amount has been described, but in addition, it is preset in the same manner as described above based on signals from various sensors such as a vibration sensor and a pressure sensor that constitute the sensor unit 11. When it is determined that a critical reference value such as a critical vibration reference value for responding to an earthquake or a critical pressure reference value has been exceeded, an alarm or a supply of media is cut off. Of course, the determination of the alarm or the supply interruption of the medium may be performed using a single critical reference value or a plurality of critical reference values, and appropriately performed in accordance with legal standards. is there.
[0023]
Next, additional functions will be described. This additional function is a function used for the convenience of the medium supplier and / or user. Specifically, in order to consider changing the number of consumer devices and meters used by the user, or to use when creating a medium usage plan, the data on the amount of passing medium is stored in the memory 14 or the like. It is a function to keep. In addition, if the data on the amount of passing through the medium is stored in the memory 14 by giving an identification value for each consumer device in advance and dividing it for each consumer device, for example, the charge is changed for each usage time zone. If the amount of medium used is large, a special fee can be set, or a fee can be changed when a specific consumer device is used. In addition to such a service, when the medium usage status of the user for a certain period can be patterned, the pattern is stored in advance in the memory 14 or the like, and this pattern and the medium usage data are stored in the control unit. By comparing in 1, for example, it is possible to confirm the safety of an elderly person's home, to check whether it is at home or not, and to collect a fee at home. The operation program related to such an additional function is stored in the second storage unit 3. As this operation program, a signal related to the amount of medium passing from the sensor unit 11 is calculated by the control unit 1 for various purposes such as every specific time or for each consumer device based on the identification value, and in the memory 14. For example, the data is stored, or the stored data is compared with, for example, a usage pattern set in advance for each season.
[0024]
The main functions of the meter 100 have been described so far. The first feature of the meter 100 according to the present invention is that the operation program related to the weighing function is stored in the non-rewritable first storage unit 2 and added functions. The operation program related to is stored in the rewritable second storage unit 3. As a result, it is possible to respond appropriately to the addition of new additional functions or changes of additional functions according to usage patterns that change with the season, etc., and the operation program related to the weighing function associated with charge collection is inadvertently rewritten. It is possible to improve reliability. Further, with this configuration, it is possible to reliably measure the medium even during operations such as addition or rewriting of operation programs related to additional functions.
[0025]
The interface unit 4 in FIG. 1 is a portable communication terminal device, a removable storage medium such as an MO or a CD-ROM, a LAN, or the like, in addition to the communication terminal device and alarm device that can always be externally connected as described above. It is also possible to connect to an external storage medium connected to In this case, it is of course possible to position such an external storage medium as the second storage unit or the like. The control unit 1 controls functional operations such as a weighing function, a security function, and an additional function, and has functions such as arithmetic processing and comparison processing performed by a known CPU as described above. . As described above, the present invention is not limited to the embodiment of the meter of the present invention described with reference to FIG. 1, and various modifications or changes may be made without departing from the technical scope based on the description of the claims. Improvements can be added. FIG. 2 shows an example thereof. In the meter 100 of FIG. 2, the first interface unit 4 ′ and the second interface unit 4 ″ are individually provided. In this way, by providing a plurality of interface units, for example, the first interface unit 4 ′ can be connected to a conventional low-speed line (telephone line) for data communication with the monitoring center. Even if it is connected to the first communication terminal device, the second interface unit 4 ″ is connected to the second communication terminal device (same as the first communication terminal device) via a higher-speed line (for example, a telephone line). In other words, it is possible to efficiently download an operation program having a large information capacity from the outside to the second storage unit 3 via the second interface unit 4 ″. The interface unit 4 ″ may be connected to the second communication terminal device through a public line such as a telephone line so that data communication with the monitoring center is possible. For example, the second communication terminal device is a PC (personal computer). Alternatively, only the PC and the second interface unit 4 ″ may be connected by a telephone line or the like. Furthermore, the meter is installed with the second communication terminal device as a portable communication terminal device. It is also possible to perform data communication with the second interface unit 4 ″ at the place where it is provided.
[0026]
Next, an electronic weighing device system for monitoring the electronic weighing device of the present invention will be described with reference to FIG. 3, FIG. 1, and FIG. FIG. 3 is a schematic diagram showing a configuration example of the monitoring system. As shown in FIG. 3, the meter 100 performs overall monitoring at the monitoring center 50. The meter 100 and the monitoring center 50 can perform data communication with each other. As a result, the monitoring center 50 outside the meter 100 receives an output signal such as an alarm signal output from the meter 100 based on the security function, and transmits a medium supply cutoff signal to the meter 100. Therefore, it is possible to cope with it as appropriate. Such a system configuration can be performed in the same manner as a known system. However, a feature of the monitoring system of the present invention is that a new operation program to be stored in the second storage unit 3 in the meter 100 is sent from the monitoring center 50. It can be downloaded to the second storage unit 3 based on the data communication. Specifically, as shown in FIG. 3, the communication terminal device 40 can be arranged between the monitoring center 50 and the meter 100. Here, when the communication terminal device 40 can always be connected, the communication terminal device, the meter 100, and the monitoring center 50 can communicate with each other through a known communication line such as a public line. If the communication terminal device 40 is a portable communication terminal device, data communication can be performed between the monitoring center 50 and the portable communication terminal device via public radio waves, etc. Data communication may be performed at 100 at the installation site. With such a monitoring system, the operation program can be downloaded from the monitoring center to the second storage unit 3 via the communication terminal device, and information stored in the memory 4 of the meter 100 can also be stored. It can be transmitted to the monitoring center. As a result, it is possible to efficiently transmit and receive data between the monitoring center and the meter 100.
[0027]
In the present situation, since a system is being constructed in which the monitoring center 50 and the meter 100 are connected to the communication terminal device via a telephone line, this system may be used, but a new telephone line or the like may be used. Since there are areas where it is difficult to lay communication lines and some users do not need it, in that case, it can be said that it is particularly useful in terms of a monitoring system to use a mobile communication terminal device as the communication terminal device. Further, as shown in FIG. 3B, in data communication between the communication terminal device 40 and the meter 100, two lines, a conventional low-speed telephone line and a higher-speed communication line, are used. The operation program to be stored in the second storage unit 3 having a large amount of information can be downloaded by using a high-speed communication line, and the efficiency can be increased. In this case, the communication terminal device 40 has two connection terminals that handle each line individually.
[0028]
As described above, the monitoring system of the present invention is a system suitable for improving the efficiency and simplification of data transmission / reception, in which a new operation program can be downloaded from the monitoring center to the second storage unit of the meter. Next, the communication terminal device of the present invention will be described. This is a communication terminal device that enables mutual data communication between the meter and the monitoring center, and is stored in the second storage unit in the meter that transmits data from the monitoring center. The feature is that the operation program information related to the new operation program to be received can be received, and the operation program information can be downloaded to the second storage unit of the meter. That is, since it is a communication terminal device incorporated in the above-described monitoring system, detailed description thereof will not be given. However, data communication with the monitoring center is possible via a communication line such as a public line as long as it can be always connected. In the case of a portable communication terminal device, data communication with the monitoring center is possible via public radio waves. If it can be always connected, it can be communicated with the meter via a communication line such as a public line, and on the other hand, if it is a portable communication terminal device, data communication with the meter is possible. Thus, the communication terminal device of the present invention has a terminal unit that can perform data communication with the monitoring center and the meter, respectively. As a result, it is possible to promote efficiency and simplification of data transmission / reception between the monitoring center and the meter. In this case as well, it can be said that it is particularly useful because the communication terminal device is a mobile communication terminal device, so that data can be transmitted and received without newly laying a communication line such as a telephone line.
[0029]
In addition, in data communication with the meter, the communication terminal device includes a connection terminal that handles operation program information to be stored in the second storage unit of the meter, and a connection terminal that handles information having an information capacity at least smaller than the operation program information. It can be said that it is particularly desirable to have it. As a result, the data transmission of this operation program information can be performed using a higher speed line without using the already established low speed line, and thus the efficiency of data communication with the meter can be improved. It becomes.
[0030]
Up to this point, a monitoring system that can newly download an operation program from the monitoring center to the second storage unit of the meter, and a communication terminal device included therein have been described. Therefore, an example of the operation procedure in the control unit on the meter side relating to such download will be described with reference to the flowchart of FIG. First, the meter control unit determines whether the data information received through its own interface unit corresponds to the addition of new software, or the rewrite or deletion of already installed software (in the figure). Procedure (1)). When adding software, installation in the second storage unit is started in step (5). On the other hand, if it is to rewrite or delete software, in step (2), send notification of software installed in the second storage unit to the monitoring center, or perform work on site For example, display is performed on the display unit. Then, the target software corresponding to software rewriting or deletion is selected by receiving data transmission from the monitoring center or the site at the control unit (procedure (3)). Then, the target software is deleted and its function is stopped. Thereafter, the software is rewritten by newly adding software as in the flow of procedures (1) and (5). Note that after the installation is completed, a confirmation signal indicating the completion of the installation is sent to the monitoring center or displayed on the display unit.
[0031]
In addition, a change request function for requesting an external changer such as a monitoring center from the meter side to rewrite the operation program stored in the second storage unit or to add a new operation program to the second storage unit. It can also be given to the meter. Specifically, first, the weighing data obtained by operating the operation program related to the weighing function, the additional function, and the security function in the control unit is stored in the memory, for example, using the operation time as a function. The control unit compares the weighing data pattern stored in the memory with a specific pattern based on a preset critical reference value, and changes due to the specific pattern (for example, a predetermined pattern). When a change exceeding the threshold value is detected, a signal requesting the change of the operation program may be output to the outside via the interface unit of the meter. By assigning a change request function to the meter in this way, for example, when the medium usage is rapidly increasing, the stored operation program cannot provide highly reliable weighing data, It can be set as the meter which can respond quickly, when the preset measurement pattern is no longer suitable with the change of the consumer appliance which a user uses by a change.
[0032]
Up to this point, the embodiments according to the present invention have been described. However, the present invention is not limited to these embodiments, and firstly, a non-rewritable first storage means for storing an operation program related to the weighing function; The invention relating to the meter provided with the rewritable second storage means for storing the operation program relating to the additional function is included in the concept of the present invention.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an embodiment of an electronic weighing device of the present invention.
FIG. 2 is a schematic configuration diagram showing an embodiment of the electronic weighing device of the present invention, following FIG. 1;
FIG. 3 is a schematic diagram showing a configuration example of an electronic weighing device monitoring system according to the present invention.
FIG. 4 is a schematic procedure diagram showing one procedure for downloading an operation program according to the present invention.
[Explanation of symbols]
1 Control unit (CPU)
2 First storage
3 Second storage
100 Electronic weighing device

Claims (9)

In an electronic weighing device having a weighing function for weighing a medium amount of a medium passing therethrough and an additional function used for the convenience of the supplier and / or user of the medium,
Control means for controlling the weighing function and the additional function;
A first storage means for storing an operation program used by the control means and a second storage means for which rewriting is disabled;
With
An operation program related to the weighing function is stored in the first storage means, an operation program related to the additional function is stored in the second storage means, and
In a security function for ensuring safety related to the user of the medium and / or a security function for cutting off the supply of the medium,
The operation program related to the security function is stored in advance in the first storage means and the second storage means, and when the operation program related to the security function is changed, it is stored in the second storage means in advance. The first storage means is created during and before the operation of storing the changed operation program in the second storage means by rewriting the operation program. The electronic weighing device is characterized in that the security function is controlled by an operation program related to the security function stored in the storage . Stored in the second storage means, a first interface unit that can be connected to a monitoring center that centrally monitors the electronic weighing device and a first communication terminal device for performing data communication via a public line. A second interface unit connectable to a second communication terminal device for outputting program information to be a rewritable operation program,
The electronic weighing device according to claim 1, wherein the second communication terminal device is a mobile communication terminal device.   When a specific pattern change based on a preset critical reference value is detected in a data pattern of measurement data obtained by operating the measurement function or the additional function or the security function using the control unit, The electronic weighing device according to claim 2, further comprising a change request function for requesting an operation program change to the outside via the interface unit. An electronic weighing device monitoring system for monitoring the electronic weighing device according to any one of claims 1 to 3,
Including the electronic weighing device and a monitoring center that supervises and monitors the electronic weighing device;
A new operation program to be stored in the second storage means in the electronic weighing device can be downloaded to the second storage means based on data communication from the monitoring center. Type weighing device monitoring system. An electronic weighing device monitoring system for monitoring the electronic weighing device according to any one of claims 1 to 3,
Including the electronic weighing device, a monitoring center that supervises and monitors the electronic weighing device, and a communication terminal device capable of performing data communication with each other via a public line,
A new operation program to be stored in the second storage means in the electronic weighing device can be downloaded to the second storage means by data communication from the monitoring center via the communication terminal device. An electronic weighing device monitoring system. A communication terminal device that enables data communication between the electronic weighing device according to any one of claims 1 to 3 and a monitoring center that supervises and monitors the electronic weighing device. And
It is possible to receive data of operation program information related to a new operation program to be stored in the second storage means in the electronic weighing device, which is transmitted from the monitoring center, and the operation program information A communication terminal device that can be downloaded to the second storage means of the electronic weighing device.   The communication terminal device according to claim 6, wherein the communication terminal device is a mobile communication terminal device. The electronic weighing device according to any one of claims 1 to 3 and a monitoring center that supervises and monitors the electronic weighing device can be communicated with each other via a public line. A communication terminal device,
It is possible to receive data of operation program information related to a new operation program to be stored in the second storage means in the electronic measuring device, which is data-communication from the monitoring center via a public line, A communication terminal device capable of downloading operation program information to the second storage means of the electronic weighing device via a public line.   In data communication with the electronic weighing device, the apparatus has a connection terminal for transmitting an operation program that handles the operation program information, and a connection terminal that handles information having an information capacity at least smaller than the operation program information. The communication terminal device according to any one of claims 6 to 8.

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