JP3445824B2 - Monitoring system - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention
Output from lorries and other measuring instruments (hereinafter referred to as meters)
Collected pulse signals to monitor energy usage
Monitoring system. [0002] Monitoring or metering of energy consumption
In some systems, a weighing machine with a transmitter,
Meter with meter is often used, but one pulse signal of meter
It is not always one energy unit. That is, in terms of electric energy
Means that one pulse is not only 1 kWh but also 1000 kWh,
Pulse constants such as 00 kWh, 10 kWh, 0.1 kWh
A weighing meter having a number (weight) is known. Also,
Water meter is also 0.1 cubic meter and 10 cubic meter
and so on. Monitoring system for meters with such constants
Used for metering and meter reading systems, weighing data
Transmission devices that transmit
As it is and sent to the central unit and multiplied by the constant
Generally, the actual usage is calculated. Also,
In the power distribution system, not only the measurement of power
Monitor the on / off status, but separately from the above weighing.
Have been. [0003] The above conventional monitoring system
Systems and meter reading systems,
It is necessary to create software for the central unit,
Absent. If the meter is replaced with a meter with a different pulse constant,
In this case, it is necessary to change the software of the central unit. Ma
In addition, the measurement of the amount of power in the power distribution system and the ON / OFF
Monitoring equipment status separately increases equipment and construction costs
And other problems. The transmission device that performs weighing is
The pulse input section is fixed to only pulse input and is fixed.
Even if there is a surplus, it cannot be used for other purposes,
Was. Similarly, monitoring the ON / OFF status of circuit breakers etc. is performed separately.
Device is also dedicated and the number of inputs is fixed, making it versatile
There was no one. The object of the present invention is to solve the above-mentioned problems.
To build a surveillance system that is versatile and economical
It is an object of the present invention to provide a transmission device capable of functioning. [0005] The present invention achieves the above object.
Pulse signals from multiple scales with transmitters
A plurality of pulse input units for receiving signals, and the plurality of pulse inputs
Multiple pulse constant input sections provided corresponding to the
Multiple pulse constant signal outputs for weighting signals
And treating the plurality of pulse input units as pulse inputs
Or on / off input
An input system switching output unit composed of a classification signal output unit and
Count the pulse input and process the on / off input
A central processing unit that performs overall control
A transmission device comprising: a transmission unit for transmitting data to a device;
The pulse constant signal output section and the pulse constant input section
Connect the pulse to the corresponding pulse input unit
Multiply by the pulse constant taken into the input
Together with the classification signal output section and the pulse constant input
Units connected by a terminal block, and the corresponding signal of the pulse input unit
Is processed as an on / off state signal, and the counting result and the
On / off status results to said central unit.
You. The transmission apparatus transmits a plurality of signals having different pulse constants.
The pulse signal from the weighing machine with the device is taken and weighing is performed.
When weighing, a pulse constant input section corresponding to the pulse input section
Pulse constant when connected to pulse constant output section
And weigh. Also, connect to the sorting signal output section.
To the pulse input section corresponding to the specified pulse constant input section.
Connect the ON / OFF state signal of the breaker, etc., and ON / OFF state
Is performed. Check the above weighing result and ON / OFF status
The output processing result is transmitted to the center. This allows the central unit
The software is adjusted according to the pulse constant of the
There is no need to create software. Surplus in pulse input section
Even if it occurs, it can be captured as an on / off state signal. An embodiment of the present invention will be described below with reference to FIGS.
explain. A first embodiment of the present invention will now be described with reference to FIGS.
A more detailed description will be given. FIG. 1 is a circuit diagram of a transmission device according to the present embodiment and its circuit.
It is a figure showing the circumference. The transmission device 23 has an external measuring device.
Terminal block 14 to be connected, input section for receiving pulse signals, etc.
2, an arithmetic processing unit 7 for processing the fetched signal and the like,
Transmission unit for transmitting the result of the arithmetic processing to the central unit 17
11. A device for assigning device-specific numbering to this transmission device
The dress setting unit 12 supplies power to each unit of the transmission apparatus.
And a main part of the first embodiment of the present invention.
Pulse constant output part 5, pulse constant input part 6, input method off
Output unit 19 and setting terminal block 13 for setting.
Be composed. In the transmission device 23 of the present embodiment, the pulse constant
The output section has multiple constant output circuits and outputs the output of the arithmetic processing section.
Output at a predetermined timing according to the pulse constant
By determining whether it is connected to the input unit,
Multiply the input signal by a constant. The pulse constant input section is
Calculation processing to determine which part is connected to the pulse constant output section
Tell the department. The input system switching output unit is the output of the arithmetic processing unit.
Output at a predetermined timing according to the
To the arithmetic processing unit via the power unit, and the arithmetic processing unit
Process the pulse input signal as a pulse signal based on
Or process it as an on / off signal
Is used to classify the input method. Transmission signal extraction unit is portable
Terminals and connectors are provided so that terminal devices can be connected.
You. The central unit only needs to calculate values collected from the transmission equipment.
Result of calculating with numerical information input from the keyboard
Is output to the display means or the printing means. Mobile terminal device
Is the information of the connected transmission equipment and the information of any transmission equipment
And the number entered using the keys of the mobile terminal device
Displays the result of calculating the value information and the collected weighing values
Or means for printing as needed. This configuration
Numerical information entered from the central unit keyboard
And the weighing value collected from each transmission device
Energy usage efficiency can be calculated and displayed or printed
Thereby, an improvement plan can be easily made. Ma
In addition, numerical information entered from the keys of the mobile terminal
By calculating with the weighing values collected from the
Energy efficiency can be calculated as
The energy usage status can be grasped by
Can improve energy use efficiency. Next, the configuration of each section will be described in detail.
You. 1 is the output connection of the pulse meter with transmitter, which is a measuring instrument.
At the point, the two-wire system
Connected to the input terminal. The pulse input unit 2 is an insulating circuit unit
3 and a waveform shaping circuit 4.
1 is performed. Pulse input in this embodiment
The section is an example of 16 points, and 16 meters can be connected.
Reference numeral 5 denotes a pulse constant output unit.
A pulse constant output circuit of 10, 0.1 is provided to
Set four types of pulse constants together with the pulse constant "1".
Can be. The pulse constant output circuit 5 includes a limiting resistor and a transformer.
This is an example in which a transistor is used. 6 is a pulse constant input section
Limit resistor, pull-up resistor, capacitor,
In this embodiment, it corresponds to the pulse input unit 2.
Thus, 16 points are provided. Reference numeral 7 denotes an arithmetic processing unit which receives the above-described pulse input.
Detects and counts the rise of each signal from section 2
Processing is mainly performed, and the result is stored in RAM (readable / writable
(Mori) 9 is stored. 8 is the above-mentioned counting process and
Such as multiplication and transmission processing according to the pulse constant
ROM (read-out) that stores procedures for controlling the
Out-only memory). 10 is for parallel / direct transmission information
A transmission signal converter 11 converts the signal into a column signal.
is there. In this embodiment, the RS-485 method according to the EIA standard is used.
High-speed long distance even if the cross-sectional area of the transmission section 18 is small.
Some are capable of remote transmission. 12 is the central equipment
Required when the device 17 communicates with a plurality of transmission devices
In the address setting section for device-specific numbering,
is there. 13 is the pulse constant output unit 5 and the input method
The formula switching output unit 19 and the pulse constant input unit 6 are connected to the external connection line 1
This is a setting terminal block for connection at 5, 16, and 20. 2
Reference numeral 1 denotes a power supply for supplying power to the transmission device 23;
Is a power supply circuit for converting to an internal voltage used in the transmission device 23
It is. 24 connects the transmission unit and the terminal block 13 described above.
Signal lead-out section 25 for connecting to a connector
Transmission signal extraction unit for 26 is not shown in FIG.
This is a connector for connecting the portable terminal device of the roller.
With the above configuration, the pulse constant is set to the setting terminal of the transmission device 23.
Since the setting can be easily performed by the slave unit 13, the pulse constant
It can be used with various types of measuring instruments,
The load on the central device 17 can be reduced, and the input method can be set.
Setting can be easily done on the table 13 so only pulse input measurement
In addition, the on / off status can be monitored, and another terminal device can be used.
Equipment costs and construction costs are reduced because only one device is required without using
There are effects such as being economical. FIG. 2 is a front view of the transmission device 23 of the present embodiment.
The external view shows a state where the covers 30 and 31 are opened. Real truth
In the example, the terminal block for power supply, pulse input signal, and transmission
14 is arranged at the lower part, and the setting terminal block 13 is arranged at the upper part.
Have been. Normally, the cover 30 is closed and the terminal block 1
3, 14 are protected and secure. Transmission device 23
The address setting unit 12 is located at the center right of the front,
Are provided with connectors 26, respectively. Usually hippo
-31 is closed and airtight to prevent intrusion of dust etc.
Sex is maintained. The address setting unit 12 is connected to
Various indicator lights are arranged between the
It is easy to understand if there is. Next, each part will be described. 12 is the address setting
Use the rotary switch in the fixed part to set two digits, upper digit and lower digit.
Can be specified. 13 is the setting terminal block described above.
And a two-stage terminal configuration.
Connected by Therefore, connection of multiple external connection lines is easy.
It has become. 14 is for power supply, for pulse input signal,
It is a terminal block for sending. 32 is for mounting the din rail
It is a lever for removal. 27 is a power indicator. 28
Is a fault indicator that blinks when an error occurs in the transmission device.
You. 29 is a pulse input indicator, which is the pulse input section described above.
It is an indicator light provided corresponding to. 27-29 are the times of FIG.
Not shown in the road map. FIG. 3 is a right side view of the transmission device 23.
2 shows a state in which the covers 30 and 31 are opened as in FIG.
33 is a groove for the din rail, and 32 is a lever for removal.
It is. FIG. 4 shows a system connection example of the monitoring system.
You. As shown in the figure, the central device 17 and the transmission device 23
Are connected via a transmission line 18 via a converter 35. Biography
The transmission line 18 is a twisted pair line, and construction is easy. converter
35, the communication function that the central device generally has is an EIA regulation.
It is a device that converts to the RS-485 system known as a case.
36 is a repeater (amplifier) for signal amplification and waveform shaping.
It is a device that performs. Next, the operation of the transmission device 23 will be described with reference to FIG.
Raw chart, timing chart of FIG. 9 and FIG.
This will be described with reference to the flag arrangement diagram of FIG. Turn on the power first
The arithmetic processing unit 7 performs necessary initial processing (S1).
The terminal P1 output of the arithmetic processing unit 7 is turned ON (LOW level =
0) (S2), read P5 to P20 (S3), and then
The P4 output is turned off (HI level = 1) (S4). Figure
The same reference numerals denote the above-described timing relationships. Next
Then, it is sequentially checked whether the read contents are 0 or not.
(S6a, S6b ... S6t), but the setting shown in FIG.
D1 terminal and R14 terminal corresponding to P1 of terminal 13 are external
P19 is set to 0 because the connection is made by the connection line 20.
The range flag is set in hexadecimal notation at the part (a) of 10
(S8). This means that a plurality of inputs of the pulse input unit 2
Is to be divided by 14 inputs, and inputs 0 to 13
The arithmetic processing unit performs processing as the pulse input
Forces 14, 15 act as on / off inputs. sand
That is, it is a processing means for switching the input method. Above
The case where the connection is made by the external connection line 20 is
Otherwise, P5 to P20 do not become 0, so S
NO at 6t, clears range flag at S7 and ends
However, in this case, all inputs 0 to 20 are pulse inputs.
Perform processing. Next, the process proceeds to step S9, where the P2 output is output.
Turn ON. Then, the contents of P5 to P20 are read (S
10), P2 output is turned off (S11). And above
Check whether the read contents are 0
(S12a). If it is 0, it becomes YES and the flag 6
4H (H: indicates hexadecimal) is stored in RAM (memo
Li) Store (store) in the predetermined position of 9 (S13a),
If it is not 0, it becomes NO and proceeds to the next step. P2 shown in FIG.
100 terminals of the corresponding terminal block 13 are connected externally.
Therefore, in this case, all the judgments are NO until S12t. Next, in step S14, the P3 output is turned on.
Then, after reading the contents of P5 to P20 (S15), P3
The output is turned off (S16). Next, in S17a,
Similarly, it is checked whether P5 is 0 or not.
Becomes ES and sets flag OAH at a predetermined position in memory
The same check is performed one after another. In the case of FIG.
The corresponding ten terminals of the terminal block 13 are connected to the external connection line 16 by R
P8 corresponds to YES because it is connected to terminal 3.
You. That is, the pulse input terminal connected to the terminal block 14
3, the pulse constant is defined as "10",
(F) and the arithmetic processing unit 7 receives one pulse signal.
And 10 are multiplied and stored in the RAM 9. Next, in step S19, the P4 output is turned on.
Then, after reading the contents of P5 to P20 (S20), P4
The output is turned off (S21). And P5 as above
From 0 to 0, if it is 0, it becomes YES
The flag 8AH is set at a predetermined position in the memory, and
Check. In the case of FIG. 1, the terminal corresponding to P4
The terminal 0.1 of the base 13 is connected to the terminal R2 by the external connection line 15.
P7 corresponds to YES. Sand
The pulse input terminal 2 connected to the terminal block 14 is
Is defined as “0.1”, and the arithmetic processing unit 7
When the pulse signal enters 10 times, it is counted once and stored in the RAM 9
Processing. This is multiplied by 1/10. Toko
Steps S12a, S13a... S13
t, S17a, S18a,..., S22a, S23a.
In the check, the range to be checked is the above input
One before the terminal R14 because the method is classified as R14.
To the terminal R13 (not shown), and the remaining terminals
R14 and R15 are not checked. Also figure
In the example of 1, the terminals 10, 0.1 and the terminals R0.
Each connection is at one location, but there may be multiple connections. As described above, the pulse input of the terminal block 14 is performed.
The pulse signal input to the input terminals 0 to 15 is a pulse constant
It can be counted by multiplying by a constant corresponding to the input unit. Also,
Pal corresponding to the pulse constant input section not connected externally
Input is counted because it is defined as constant 1.
The value is stored as it is. Further, the terminal R1
4, R15 corresponding to the pulse input terminals 14, 15
Just check on or off instead of counting, and input
Different detection methods are possible. FIG. 10 shows the storage of each flag described above.
It is shown. The flags in steps S7 and S8 are in the range
It is stored as a flag at the position (a) in the figure.
Since the case is up to R13, it is stored as ODH.
(B) is a place to store the ON / OFF state of the pulse input
Is provided corresponding to the pulse input terminal,
In this case, the on / off input corresponds to terminals 14 and 15,
Depending on the state, ON is stored as “1” and OFF is stored as “0”
You. (C) is a constant flag for pulse input 0,
01H is stored because it is not externally connected as described above.
It is. (D), count data for pulse 0 is stored
Location. (F) and (G) show the above 8AH, 0A
H are respectively stored. (E) and (h) have external connections
There are no 01Hs. By the way, the range flag in the above example
Since the pulse is 0DH, it is not necessary after pulse input 14
However, all points may be pulse input and the storage location is the same
Need to be secured. Transmission configured as above
The device 23 has the contents of FIG.
Central device 17 keeps the count data as it is
Can be handled and there is no need to multiply by a constant.
Needless to say. Next, referring to FIG. 5 and FIG.
Will be described. FIG. 5 shows the central unit 17 and the converter 35
The external view is shown.
The container was made available. On the back is a connector for transmission
And a floppy disk drive on the side.
It was a thing. Such a personal computer
Has the configuration shown in FIG. In FIG. 6, the center
Address / data centering on the arithmetic processing unit (CPU) 46
Each part is connected by a bus 53.
explain. 41 is a keyboard, 51 is a keyboard interface
The face part 42 is a CRT (cold cathode ray tube display)
It is often a liquid crystal. 49 is a printer interface
Reference numeral 43 denotes a printer. 50 is a floppy disk
Reference numeral 44 denotes a floppy disk drive.
It is. 45 is a transmission interface unit which is generally RS-2.
A 32C interface is standard. 47 is a storage unit
Therefore, RAM and hard disk devices as described above are used.
Can be. 52 is a clock part which is a calendar clock
It functions even if the power of the central unit 17 is turned off.
You. Next, an outline of the processing of the central unit 17 is shown.
7 will be described. The main processing contents of the central device 17 are: (1) Collection and storage of weighed values from the transmission device 23. (2) Production amount for calculating energy use efficiency
Or memory for input of production quantities. (3) Calculation of energy use efficiency, that is, one month
Or the annual production amount (weighing value)
Calculation to divide production quantity. (4) Printing or various displays as necessary. It is. This will be described below with reference to FIG. First, keyboard
Processing for setting input of the measurement interval from the command 41 (S
30), at a set time interval, the data,
A collection process is performed (S31) and stored (S32). this
Is performed regularly. Next, in step S33, the keyboard 4
This is the case where numerical information is input from 1
And then input the operation processing instruction (S34).
An arithmetic operation is performed (S35). Here, numerical information and arithmetic processing
To explain, numerical information is, for example, in a factory or the like.
It is the production value or production quantity of the product for one month. Performance
The arithmetic processing is the one-month weighed value collected in S31.
Production value or production quantity entered using the above keyboard
This is a calculation process mainly for removing. Or,
Add the measured values for the past 12 months collected and add
Calculation processing to calculate the total value, and one year from the above total value
In the calculation processing to divide the production value or production quantity between
is there. The above calculation process is actually for weighing values
Input the estimated weight from the keyboard
You might also say that. The above calculation process is based on energy use efficiency
Calculate the energy usage efficiency.
Input from the board and what the weighing value must be
It is also conceivable to make a calculation as to whether or not there is. In addition, the moon
Calculation process such as energy use efficiency forecast for each or every year
The reason may be considered. Next, at step S36, the calculation processing
The results of the processing and collect the data again (collection of weighing values)
Returning to S31, input of character information from the keyboard 41 is performed.
If there is power, the process moves to S37 to perform this processing. And printing
When the command is input (S38), printing is performed on the printer 43.
(S39). Here, character information refers to the numerical information described above.
The name of the operator who applied the power, the increase / decrease status of the measuring instrument, and records
This is the information you want to keep. About printing
Is the metric value collected above, energy efficiency,
In addition to character information, etc.
The registered predetermined character information is printed together.
By the way, in the transmission device 23 described above, a pulse constant is set.
It is not necessary to multiply the measured value by a constant
Not, but to convert the measured value itself to another index etc.
Is also conceivable. For example, a water meter measures the amount of water
Yes, gas meters are different from gas amounts, and electricity is
It is a kind that has become a monetary value, or
Classified by energy value, etc., each with a certain coefficient
And convert it to a unified index. This
In other words, you can know the overall energy use efficiency
it can. As described above, the central device 17 collects the weighed values.
Not only energy, but also energy
Since the usage efficiency is calculated, the energy usage is
There is an effect that it can be easily determined whether or not it is correct. Next, referring to FIG. 11 to FIG.
Will be described. FIG. 11 is a front view of the portable terminal device 60.
FIG. 12 is a top view, and FIG.
FIG. 2 shows a block diagram of a terminal device 60. The mobile terminal device 60 includes:
It is small so that it is easy to carry.
The force unit 62 and the display unit 63 are located to the right of the center for easy operation.
And a connector 68 on the left. Ma
In addition, a cable for connecting to the transmission device 23 is provided on the back.
Arrange the connectors so that they do not hinder operation and display
It was done. In FIG. 13, reference numeral 61 denotes central processing.
Section (CPU), 62 is a key input section, 63 is a display, 64
Is a printer interface, and 65 is a transmission interface.
In this mobile terminal device 60, the RS-485 interface is used.
And Reference numeral 66 denotes a storage unit, and each unit has an address.
-It is connected by the data bus 69. In FIG.
Reference numeral 67 denotes a connector for connecting to the printer 43 shown in FIG.
, 68 are for connecting with the connector 26 shown in FIG.
Connector. FIG. 14 shows the portable terminal device 60 and the transmission device 2
FIG. Mobile terminal device with the above configuration
The operation of the device 60 is first acquired from the key input unit 62 in advance.
Address setting assigned to the transmission device 23 to be collected.
After specifying the fixed number, instruct data collection. Central operation
The processing unit (CPU) 61 controls the transmission interface unit 65
Via the corresponding transmission device 23, and
It is stored in the storage unit 66 and displayed on the display 63. Then the key
From the input unit 62, a production amount or a production amount
Inputs the production quantity, gives the calculation instruction and displays it on the display 63
I do. Next, a print instruction is issued from the input unit 62 as necessary.
U. The format for printing is set in advance by the central processing unit.
61 for printing in a predetermined form.
You. As described above, the operation of the portable terminal device is performed by the central device described above.
The operation is similar to that of the device 17 except that the function is reduced.
However, the energy use efficiency can be grasped on site, and
Information for planning can be obtained. According to this embodiment, the following effects can be obtained.
It is. (1) The pulse constant can be easily set on the terminal block of the transmission device
Therefore, it can support various measuring instruments with different pulse constants.
It is versatile and can reduce the burden on the central unit. (2) The input method can be easily set on the terminal block of the transmission device,
Monitors ON / OFF status as well as measuring pulse input
Well, one device can be used without using another terminal device, etc.
Equipment costs and construction costs are economical. (3) The transmission device can easily attach a portable terminal device other than the transmission line.
Can be disconnected and connected as needed. (4) Since the portable terminal device can display weighing on site,
Economical as a scale system. (5) The portable terminal device can display the weighing value of any transmission device.
The other weighing conditions can be easily confirmed. (6) Know the energy use efficiency of mobile terminal devices
Energy management on site and energy saving
Helps raise energy awareness. Next, a second embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. Fig. 15 is applied to the distribution system
FIG. 1 is a skeleton diagram illustrating an entire system according to the present embodiment. Receiving
When the distribution system is classified, it can be roughly divided into the receiving part and the secondary substation.
Location, feeder (branch), and low-voltage power distribution
The outline will be described. The upper part 200 of FIG.
A transformer (VC) that interfaces the measurement of the total amount of electricity
T), a transformer composed of an instrument transformer and a current transformer, 1 is
The power meter (WH) 201, which is the aforementioned measuring instrument, is a hoax.
Meter (maximum demand power meter: DM), 202 is an output
It is a pulse converter to take consistency such as the pulse width.
It is not necessary. 203 is a disconnector (DS), which is a main circuit.
Open and close. 205 and 213 are secondary substations
In this figure, a single-phase transformer 1φTR and a three-phase
Pressure transformer 3φTR, 206 is a circuit breaker (FFB)
For opening and closing circuits, 207 and 210 are lightning arresters
(LA and SA), 208 is an air circuit breaker (VCB)
is there. By the way, 204 is an instrument transformer and the level of system voltage
209 performs level conversion of the system load current.
Current transformers, which are used as analog signals in the present invention.
With the sensor device which tells the monitoring unit 100 of the second embodiment
is there. The monitoring unit 100 is described in FIG.
I will tell. 214 is an overcurrent relay (51R), 211 is zero
The phase transformer (ZPC) 212 is maintained by a ground fault
It is a relay for protection. 216 indicates a zero-phase current transformer.
Reference numeral 23 denotes the transmission device 215 described in the first embodiment of the present invention.
Is a circuit breaker, 18 is a transmission line, 35 is a converter, and 17 is a central
Keyboard 41, CRT 42, printer 43, etc.
It is a separation-type central device to be formed. FIG. 1 shows the monitoring unit 100.
6 and FIG. FIG. 16 is a block diagram showing the function.
In the lock diagram, the names of the signals from each sensor
Physically shown on the left, these signals are converted to input values (specifically
Includes analog / digital conversion, insulation / waveform, etc.)
And perform various arithmetic processing and storage, and measure values (weighing values)
Display and alarm display, alarm output, self-diagnosis, to central unit 17
It consists of a transmission unit that transmits data and a setting unit that performs various settings.
You. It also shows the items of arithmetic processing. Each of the above
The function is a block circuit shown in FIG.
explain. 100 is a monitoring unit composed of the following circuits.
To achieve. 102 is a current transformer (CT) 209 shown in FIG.
These signal lines 103 indicate the signal level of the current transformer 209.
The current transformer 104 for converting
The input signal line from the current transformer 216, 105 is the above-described instrument.
Signal line from transformer for instrument, 106 is the transformer for instrument
Internal conversion to further convert the signal level from
The compressor 107 converts an analog signal into a digital value
Converter 108 is used for transformers 205, 213, etc.
Input signal line from the provided temperature sensor, 109 is signal amplification
Circuit 110 is a pulse signal from a pulse converter or
ON from overcurrent relay 214, ground fault relay 214, etc.
An off signal line 111 is a waveform shaping unit. 101 is the center
The arithmetic processing unit controls each part inside the monitoring unit 100
Control, and perform various arithmetic operations, etc.
It is connected to each section by a data bus 122. 112 is
A display driving unit 113 is a display, and 115 is a Keith
Switch, 114 is an input amplifier, 117 is a relay 118
It is a signal output driver. 118 is an output relay for alarm
Consists of coils and contacts. 116 is the central processing unit
In the storage unit for storing the result calculated by
It is a writable nonvolatile storage element. 119 is a monitoring unit
Rotor for setting unique number (address) of knit
A re-switch 120 is a switch for switching transmission speeds and the like.
Central switch via input amplifier 121
It is passed on to the department. Reference numeral 125 denotes a transmission unit via the transmission line 18.
And exchanges information with the central device 17 in this embodiment.
Is the RS-485 interface mentioned above.
You. 123 is a power input line of the monitoring unit, and 124 is each
It is a power supply unit that supplies a voltage to the unit. The monitoring unit configured as described above is
The voltage change ratio (VT ratio) and the change
Storage unit 116 in which a flow ratio (CT ratio), a pulse constant, and the like are set.
To be stored. And the analog from each sensor device
Input signal, convert it to digital, convert the above-mentioned transformer ratio,
The result is multiplied by a ratio, a pulse constant, and the like and stored in the storage unit 116. During ~
The central device 17 stores the contents stored in the storage unit 116.
That is, the measured values are collected via the transmission line 18 and the transmission unit 125.
You. Next, the display processing of the central unit 17 will be mainly described.
The process will be described with reference to FIGS. FIG.
In the power receiving unit shown in FIG.
H), collects the amount of power taken in through converter 202
Power consumption versus time is displayed on the screen as a bar graph.
It is shown. The unit No. shown in the upper left of the figure. Is
With the device-specific address number set for each device described above,
A name indicating the location is displayed on the right side. Ma
The upper right part shows the current date and time in the upper part and the lower part
Shows the date, time and date when the rough is displayed.
The bar graph shows the history of daily usage.
In the lower part, the measurement data for the time is displayed numerically.
And the usage can be checked. Also on the screen
At the bottom, a function for switching unit numbers (next
Section, previous section) and various function menus.
Also placed corresponding to the function keys on the keyboard
It is. FIG. 19 shows an example of displaying weighing values in a table format.
Is shown. This is called the so-called daily report. In the figure
Knit No. 01 is the same as the bar shown in FIG.
It corresponds to the rough. Unit No. And its lower part
Format can be specified arbitrarily.
Calculates and displays the daily total, maximum value, average value, etc.
It is like that. Time zone that cannot be displayed further
And horizontal items are scrolled and displayed by key operation
I can do it. A function menu is displayed at the bottom.
And make it easier to operate. 7 in the figure (floppy)
Is the function to store the data on the floppy disk 7,
) Indicates a function for causing the printer to print. Next, FIG. 20 shows the weighed values for each day in a table format.
The example shown is shown. This is called the monthly report.
Next, FIG. 21 shows the energy use efficiency in this embodiment.
This is a display example, and will be described below. The bar chart is monthly
Indicates the collected weighing value, that is, the amount of power used,
Line graphs connected by lines show energy use efficiency.
It is. The horizontal axis shows the monthly history, and the left vertical axis shows the power consumption
Scale on the right and the vertical axis on the right shows the scale on energy use efficiency.
It is shown. The cursor is displayed at the bottom of the graph.
The monthly power consumption is shown in the upper row, the production
The energy use efficiency is displayed in the column, and the value can be checked at a glance
I am able to do it. On the right side is the yearly number
It is shown. Next, FIG. 22 shows the amount of electric power used together with the same month of the previous year.
Shows an example of a bar graph displayed on the
The left side shows the power consumption of the previous year, and the right side shows the power consumption of this year.
it's shown. And at the bottom of the bar graph, the previous year and this year
And the difference in electricity consumption from the same month last year
The value can be checked. It is negative in the figure
It shows that it has decreased from the previous year. Further
The right side shows the total value of the yearly differences.
You. Also, the function display at the bottom of FIGS. 21 and 22 is shown.
Floppy / Printer menu
Can be stored on a PC disk or printed on a printer.
Yes, it is convenient for storage. This printed data
Data stored on a disk or floppy disk
Manage annual energy use and energy use efficiency
Can be used as materials to be submitted to administrative departments or government agencies
Wear. As described above, it can be seen from the display examples of FIGS.
Energy efficiency can be confirmed
It is possible to determine whether the amount used is appropriate or not,
There is a standing effect. FIG. 23 shows another display example.
Shows an example in which a bar graph is displayed in descending order of the amount of use. Bar
The left side of the graph shows the amount used in the previous year, and the right side shows the amount used in the current year.
And promoted energy saving by department by comparing
Is effective. According to this embodiment, the central device collects the weighed value.
Not only collects energy, but also
-Since the usage efficiency is calculated, is the energy usage
It is easy to judge whether it is inappropriate. Also energy
You can know the usage efficiency, energy management and energy saving
Helps raise the sense of energy. In addition, supervision of energy etc.
Visual data can be stored and energy use for a long time
Can have data such as volume and usage efficiency as data
So this data must be released in a predetermined format
To administrative departments and government agencies that manage energy
It can be used as a submission document. According to the present invention, a weighing machine with a plurality of transmitters is provided.
These pulse signals are taken and individually measured with a scale equipped with a transmitter.
We can measure by multiplying different pulse constants
Therefore, it is easy to create software for the central unit and the burden is small.
Disappears. Also, even if a surplus occurs in the pulse input section,
To the center as an ON / OFF state signal for a circuit breaker, etc.
Can provide flexible transmission equipment.
You.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram of a transmission device in a monitoring system according to a first embodiment of the present invention. FIG. 2 is a front view of a transmission device in the monitoring system according to the first embodiment of the present invention. FIG. 3 is a right side view of the transmission device in the monitoring system according to the first embodiment of the present invention. FIG. 4 is a system connection diagram in the monitoring system according to the first embodiment of the present invention. FIG. 5 is an external view of a central device and the like in the monitoring system according to the first embodiment of the present invention. FIG. 6 is a block diagram of a central device in the monitoring system according to the first embodiment of the present invention. FIG. 7 is a schematic flowchart of processing of a central device in the monitoring system according to the first embodiment of the present invention. FIG. 8 is an operation flowchart of the transmission device in the monitoring system according to the first embodiment of the present invention. FIG. 9 is a timing chart of the transmission device in the monitoring system according to the first embodiment of the present invention. FIG. 10 is a layout diagram of flags and the like of a transmission device in the monitoring system according to the first embodiment of the present invention. FIG. 11 is a front view of the portable terminal device in the monitoring system according to the first embodiment of the present invention. FIG. 12 is a top view of the portable terminal device in the monitoring system according to the first embodiment of the present invention. FIG. 13 is a block diagram of a portable terminal device in the monitoring system according to the first embodiment of the present invention. FIG. 14 is a connection diagram of the transmission device and the portable terminal device in the monitoring system according to the first embodiment of the present invention. FIG. 15 is a skeleton diagram showing the entire power distribution system in the monitoring system according to the second embodiment of the present invention. FIG. 16 is a functional block diagram of a monitoring unit in the monitoring system according to the second embodiment of the present invention. FIG. 17 is a circuit block diagram of a monitoring unit in the monitoring system according to the second embodiment of the present invention. FIG. 18 is a diagram illustrating a display example of power consumption in the monitoring system according to the second embodiment of the present invention. FIG. 19 is a diagram illustrating a display example of measured values in a daily report format in the monitoring system according to the second embodiment of the present invention. FIG. 20 is a diagram illustrating a display example of measured values in a monthly report format in the monitoring system according to the second embodiment of the present invention. FIG. 21 is a diagram showing an example of a history display of energy use efficiency for one year, which is a feature of the present invention in the monitoring system of the second embodiment of the present invention. FIG. 22 is a diagram showing an example of simultaneous display of the previous year's measured value and the current year's measured value, which is a feature of the present invention in the monitoring system of the second embodiment of the present invention. FIG. 23 is a diagram showing an example of display of a weighing value in each section in the monitoring system according to the second embodiment of the present invention. [Description of Signs] 5: pulse constant output unit, 6: pulse constant input unit, 7: arithmetic processing unit, 9: storage unit, 13: setting terminal block, 19: input method switching output unit, 23: transmission device, 24 , 25: signal extraction unit, 26: connector, 17: central device, 60: portable terminal device.

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Yasuyuki Hiyama 46-1, Tomioka, Nakajo-cho, Kitakanbara-gun, Niigata Pref. Hitachi, Ltd. Industrial Equipment Division (56) References JP-A-4-138026 (JP, A) JP-A-2-122848 (JP, A) JP-A-61-15528 (JP, A) JP-A-58-223898 (JP, A) JP-A-1-274630 (JP, A) JP-A-58 JP-A-29095 (JP, A) JP-A-63-192195 (JP, A) JP-A-3-292597 (JP, A) JP-A-53-78867 (JP, A) JP-A-59-191700 (JP, A) JP-A-5-312855 (JP, A) JP-A-3-97341 (JP, U) JP-B-63-55027 (JP, B1) JP-A-5-501624 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) G08C H02J 13/00 301 H02J 3/00 G05B 23/02 G06F 17/00

Claims (1)

(57) and [Claims: 1. A pulse input unit for taking in pulse signals from a plurality of transmitters with measuring instruments, a plurality of pulses arranged in correspondence to the plurality of pulse input unit A constant input section and a plurality of pulse constant signals for weighting the pulse signal.
Signal output section and the plurality of pulse input sections as pulse inputs,
To classify whether to be treated as on / off input
An input system switching output unit configured by a signal output unit, counting of the pulse input, and processing of the on / off input
And a transmission unit for transmitting to a central unit, wherein the pulse constant signal output unit and the pulse constant input unit are connected by a terminal block, and Count by multiplying the count value of the pulse input unit by the pulse constant taken into the pulse constant input unit
And the divided signal output section and the pulse constant input section are connected to a terminal block.
And turn on / off the corresponding pulse input signal.
A monitoring system that processes the count result and the on / off status result to the central device.