LT3717B - Autonomous pulse reading and recording system - Google Patents

Abstract

It facilitates the centralized reading of meters 1 which generate or emit pulses and facilitates the invoicing of consumption, it has a plurality of pulse-memorization units 2 connected together in parallel and enclosed in a case or grouping module 3 which is connected to a portable reader interface circuit 4 which is in turn connected to a conventional portable computer 5 in which is included a program which indicates the day's route covering the subscribers whose readings are to be collected; in order to interrogate each of the pulse-memorizing units 2 simultaneously, these units transferring the different statuses of each meter 1 to the portable reader interface circuit 4 and from there to the conventional portable computer 5, from where they are transferred to a central computer for billing. <IMAGE>

Description

The readings of the various meters may be read directly or remotely, by radio or the like, using a portable reading processor or a conventional computer.

Another object of the invention is to increase the number of surveyed meters using a simple and inexpensive technical solution.

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The main object of the present invention, which is also reflected in the title of the present invention, is an automatic pulse centralization data reading and recording system for the operative recording of readings of meters generating or transmitting pulsed signals.

The object of the invention is primarily to control the consumption of water, gas or electricity, but the system may be used more extensively in telephone or telex communications, as well as in other devices where pulsed signals are generated or transmitted.

The present invention relates to a fully automated multi-meter recording system that does not make human-specific errors.

The readings of the various meters can be read remotely - by radio or similar, using a portable reading processor or a conventional computer.

Another object of the invention is to increase the number of surveyed meters using a simple and inexpensive technical solution.

The scope of the present invention is in accordance with European Patent Application Ser. 0.342.146 and German Patent P 3618316.

German Patent P 3618316 discloses a device for recording and transmitting energy data, which is used to measure the power consumed by current power systems in power lines using distributed meters, the readings of which are transmitted to the lines from the power point to a remote readable position at the power point station. Such a system also records power interruptions transmitted via message transmitters remotely connected to a reading station, and data on power interruptions can be transmitted along with power consumption data in the opposite direction and with power line flows to power. producing station.

The disadvantage of such a system is that it can only be used in places where there are power control units, and in addition, the system requires a communication line between the power station and the power station and remote meter reading devices at the power stations. , whose information needs to be synchronized, which makes such a system complicated and expensive, and its technical release is very complicated and its operation is complicated.

Another disadvantage of this analyzing system, which is described in the aforementioned German patent, is that it has limited applicability, since its remote data reader can connect a relatively small number of users, and it is difficult to increase this number without introducing new such equipment itself, which is cumbersome and significantly increases financial costs.

In summary, it can be concluded that the technical solution described in the above-mentioned German patent is complex and uneconomic.

The aforementioned European Patent discloses a device for detecting a connection between an electricity meter having a control circuit which provides measurement data in the form of respective output signals and a manipulated communication device which, together with said meter, is open and exposed to direct and indirect sunlight.

It should be noted that in the device described in the aforementioned European patent, the connection between the meter and the manipulated communication device is realized at a certain distance using infrared radiation, which is generated and received by special converters and circuits. Spurious radiation forces devices to install additional circuits that also record incident solar radiation within a specific spectral range that produce a characteristic output signal in the form of a DC current of a magnitude such that only useful information transmitted by the communication medium is recorded.

The known device to be analyzed in the meter shall have a light-sensitive receiving means on the inside of the front panels, this panel shall have an aperture aligned with the photodiode and aligned so as to limit indirect radiation from sources in the horizontal plane .

All this shows that such a device is technically complex and expensive, and it can record information only a short distance away.

There have been cases where attempts have been made to interrogate meters or read information using radio communication. In such systems, the meters were connected to a communication unit, which in turn was connected to a transceiver for transmitting data to a mobile device, which was in the car and which was equipped with a transceiver and a computer.

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All such instruments of the system shall be directly mains-operated and shall include a coding device for reading meter information and shall be briefly activated (350 ms), reading the meter readings and transmitting the resulting information to a microprocessor. The information is transmitted in the form of an asynchronous sequential coded ASCII signal. In addition to the meter data, the encoder additionally transmits service signals for unauthorized actions that may result from interrupted wire sensor signals, magnetic field sensor signals, voltage loss detector signals, and more. When the signal is transmitted, the encoder is disconnected.

Such a system is complex and expensive, and there are many operational problems with powering the system.

The present invention completely eliminates the aforementioned disadvantages inherent in control systems of known application. The present invention relates to an autonomous impulse data recording system adapted for meters generating or transmitting pulses that provide consumption information in which readings are read by a portable readout processor without transmission lines or remotely using radio systems, and which do not have the disadvantages for scanning radio systems.

Another object of the invention is to increase the number of controlled meters without complicating the hardware and using relatively cheap technical means.

Therefore, in a first embodiment of the invention, the meter is connected to an impulse storage device. All impulse storage devices are interconnected and are located in a device box or connector module which is connected to a scanning device, such as a portable scanning processor, MODEM, receiving radio transmitting device or the like.

Said connection modules may be connected in parallel with other analogue modules on the five-line bus used to connect the scanning device.

The pulse storage units have a special function integrated circuit, which is specifically designed for pulse counting, and which can be connected to the above five-line bus, to which a large number of pulse storage units can be connected in parallel.

The said special function integrated circuit has a binary counter through which the pulse generator or emitter meter is connected. The latter meters are connected to the register to read binary meters separately.

Each pulse trainer, and obviously its special function integrated circuit, has a user identification code input, which is coupled to a multiplexer circuit, which in turn is associated with a register, so that when the pulse trainer addresses the reader, the contents of the binary counter and user identification code is transmitted in order to read the meter status and the data of that received user number.

The pulse storage device includes a position recorder, and the coupling module includes a pulse storage position code input circuit, which, together with the position recorder, is coupled to a comparator which forms an output selection signal of the pulse storage unit.

Each pulse block is coupled to a five-channel bus so that the pulse that controls the position of the position meter can be selected. The user identification code and the meter display are read sequentially by one bit incrementing the position meter status which controls the multiplexer selection input.

Further, the contents of the position meter are magnified by selecting a pulsed storage device, the data of which is then read.

Said meters - nine columns status register _r which means that on a single bus may be connected 512 drives pulse units that is useful to allocate to the corresponding connecting modules.

A scanner can be connected to any location on the five-channel trunk.

Each pulse generating integrating meter has at least one pulse accumulator. For example, a three-rate electricity meter has three integrators, so it must have three pulse accumulators.

The source of power for pulse storage devices is usually lithium batteries.

As mentioned earlier, the pulse storage units can be interviewed by a portable reading processor that can be connected to a five-line bus and has an additional external power supply that supplies the pulse storage units to reduce power consumption and increase their operational autonomy.

The scanning device may be connected at a certain distance from the connection module of the impulse storage devices. The connector of the connector module can be moved a certain distance by using an extension, so that it is possible to read the readings of the pulse generating meters not necessarily in the premises or places where the connector module or modules are installed. So the scanner can be connected far away from the gauges.

The recording system in question may also be connected to other data acquisition systems, such as telephone line, infrared or radio, MODEM and the like.

The connection of binary counters, which are special function integrated circuits, to pulse generating or emitting meters is done via RC filters to reduce interference in the connecting cable and reduce power consumption when the pulse meter contact is closed.

In a second embodiment of the invention, the scanning device is connected at a certain distance using radio communication means. In this embodiment, the system comprises a device comprising a transceiver antenna and a remote scanning device directly connected to the transceiver and to the connection module or modules. In this case, a portable data read processor is unnecessary.

In yet another embodiment of the invention, a remote radio communication system is used which comprises an in-vehicle mobile unit which is connected to a car battery by a priLT 3717 B. This device includes a portable computer that has a program that records inspection days and readings of registered users, which is connected to a portable remote scanning device computer, which in turn is connected to the transceiver antenna. Thus, when the mobile unit is located near the stationary unit, the stationary unit is allowed to be interviewed by the mobile unit. The mobile unit then sends a code which the stationary unit receives and, upon returning the same code, confirms its reception and then begins to read the status of each meter which is in the connection module or pulse storage modules. The data is received by the mobile unit and transmitted to a portable computer, which processes and memorizes it. From the portable computer, the data is further transmitted to the central computer for evaluation of the results obtained.

In the stationary recording unit, the remote reading device has a microprocessor controlling it and is connected to an input port, which in turn is connected to a remote controlled decoder and further to a receiver via a tuning circuit. Such a structure assists in identifying the code transmitted by the stationary unit, which is received by the mobile unit, and decodes such that, if such identifiable code coincides with a code written in a microprocessor EPROM-type memory, the transmitter is energized and transmits the same code. it is ready to receive, and then the data stored in the connector module is read by sending it to the mobile unit.

On the other hand, the microprocessor of the stationary unit reader is coupled to a first output port, which in turn is connected to a remotely controlled encoder via a computer interconnected by transmitter LT 3717 via a second tuning circuit, which allows for the transmission of identified code and data which are read from the connecting module or modules.

The power supply of the stationary unit is connected to the mains. The control circuit is connected to the connecting module or modules via a matching circuit, which in turn is connected to the microprocessor via a second output port. The connector module or modules are connected to the input port through the third matching circuit so that the stationary unit feeds the connector module or modules as they are read through the input port when sending information messages. At the end of the transmission, it switches to reception mode.

The mobile unit has a bus matching circuit which is connected to the laptop and does not interfere with its operation.

Such a bus trunk alignment circuit is located on a portable remote scan unit having the same structure as a stationary scan unit and having the same circuit used to connect to the junction module.

In another embodiment of the invention, memorized pulses are read by a portable reading interface which is connected to any conventional computer via a connector. There is also a dedicated connection circuit to connect the computer to the connection module. Thus, any computer sold in the market can be adapted to read meter readings directly.

Thus, the structure described in the present invention performs an automatic survey of meters in a short period of time and at the same time allows for a significant increase in the number of such surveyed meters due to the connection of pulse capacitors to each of them.

The invention will be explained in further detail by way of further discussion of individual embodiments, and drawings will be attached to the descriptions.

FIG. 1 is a simplified block diagram of an automatic pulse water meter reading system using a portable scanner.

FIG. 2 shows a block diagram of another embodiment in which the scanning device is connected via an intermediate unit.

FIG. 3 shows an impulse storage device comprising a special function integrated circuit which is coupled to a respective meter and corresponding scanning device.

FIG. 4 shows an integrated circuit diagram of a special function.

FIG. 5 is a schematic circuit diagram of a portable scanning interface circuit through which a pulsed storage device is read under the control of a conventional portable computer.

FIG. 6 is a schematic diagram of an electricity meter in which a pulsed storage device is read using a radio link.

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FIG. 7 is a schematic diagram of a stationary unit coupled to at least one junction module having a plurality of pulse storage devices used to transmit data therein by electromagnetic waves.

FIG. Fig. 8 is a block diagram of a mobile in-vehicle device in which meters are read remotely.

FIG. 9 shows a circuit diagram for connecting a circuit to a microcomputer for direct reading of data from a pulse storage device.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be understood by reference to the accompanying drawings.

The object of the invention is an autonomous pulse recording system which is used for centralized energy, water or other. readings of meters which generate or emit pulsed signals and which are further used for recording.

In a first embodiment of the invention shown in FIG. 1, are pulse generators 2 which are coupled to pulse generating or emitting meters 1.

The meters 1, which are connected to the impulse storage devices, may be water, gas or electricity meters. They are connected in a simple way, without any modifications or modifications.

For each meter 1, an appropriate pulse accumulator 2 is provided.

All impulse storage devices 2 are connected in parallel to each other in a connection module or box 3 which may be connected via connection 14 with or without extension to a portable scanning processor 5 'which interrogates and reads the data stored in the impulse storage devices 2 corresponding to the meter states.

After the data is in the scanning processor 5 ', the latter is transported and connected to a central computer 51 which records the consumption.

The impulse storage devices 2 are manufactured using CMOS technology and are powered by lithium batteries, which allows them to be disconnected from the mains. An impulse storage device 2, the electronic diagram of which is shown in FIG. 3, has a special function integrated circuit which has a 32-bit binary counter 6 which can (in this embodiment) count four thousand million units or pulses.

The input of the binary counter 6 has an RC filter and the meter 1 is connected via a connector 24. Such a filter reduces the scanning speed to 5 pulses per second and suppresses interference in the connecting cable to the meters 1 and reduces power consumption when the pulse contacts are closed. .

The binary counter 6 is connected to a register 8 which memorizes the impulses received by the binary counter 6. When it is determined that the impulse storage device has already been polled by the scanning device, register 8 records the readings of the binary counter 6.

In addition, the pulse storage device 2 has a plurality of inputs 7 for reading the controlled user identification code. These inputs are formed by cutting or drilling the printed tracks 16. The terminals are connected to a positive or negative potential corresponding to logic 1 or logic 0. When the scanner affects the connecting module, the identification code is read at the same time as the state of the binary counter 6.

The special function integrated circuit 9 comprises a multiplexer circuit 18 which is connected to the register 8 and to the inputs 7.

In addition, the special function integrated circuit 19 has a position meter 9 and a position code input circuit 10 of a pulse train coupler module, both of which are connected to a comparator 11 which forms a pulse train selection output signal.

The comparator output 11 is coupled to the meter 12 which controls the selection input of the multiplexer 18 such that after the selection of the pulse storage, the comparator affects the meter 12 so that the output of the multiplexer 18 receives meter 1 or pulse generator data and also user identification codes.

The impulse storage devices are powered by lithium batteries.

The so-called portable killer processor 5 'has an automatic power supply which supplies the appropriate voltage when reading data from each pulse storage device. This minimizes the energy consumption of the storage devices and enhances their functional autonomy.

Using the RES line has two purposes. One purpose of using this bus is to power the pulse storage devices by reading them, which guarantees economical use of the lithium battery. Another purpose is to initialize the position decoder of the pulse storage device.

These functions are separated by the use of diodes and capacitors in the impulse capacitors so that the RES signal is routed to the appropriate point in the circuit and the duplicate impulse power supply is distributed throughout the circuit and also connected to the lithium battery.

A voltage of about 6.5 volts is connected to the RES line via the bus connection. The RLJ and ASL inputs are connected to a high logic level voltage, which is also about 6.5 volts. The SDS is also connected to a voltage of 6.5 volts through a resistor, which is located on the scan unit, which will read the information stored in the pulse storage.

The potential of the RES line drops to 0 and then becomes positive again, so position 9 is set to 0.

The position counter 9 is 9 bits so it can count up to 512 so that 512 pulse accumulators can be connected to the bus.

The number obtained from the binary counter 6 and recorded in register 8 is erased by resetting the register to its original state. This avoids interference of read data with new pulses, which must be counted and formed during the scanning process.

Binary counters 6, like registers 8, are 32-bit, so four thousand million pulses can be counted, as mentioned earlier.

The input circuit 7 has a capacity of 24 bits. These 24 bits, together with the register 8 output 32 bits at the input of the multiplexer 18, form a 56-bit word.

When the pulse enters the RES line, the position meters 9 of the special function integrated circuit 19 of all pulse storage devices are reset, i.e. to 0. The output of this position meter 9 is connected to the input of a comparator 11, which also receives the order code number (in both cases 9-bit data) of the switching module pulse trainer, which is manually formed by inserting the jumpers accordingly.

In this way, the contents of the position meter 9 (which is set to zero) and the positions of the jumper set to zero can be the same as the pulse storage of the connecting module, which registers the comparator of this pulse storage (usually the first pulse in the module ). The positive identified signal then passes through the meter 12 to the selection input of the multiplexer 18, setting it to an output state.

The overlapping information is received externally, since the positive comparator signal of comparator 11 is also fed to the output of the special function integrated circuit 19 in the SDS and further transmitted to the five-line bus, also named SDS, via transistor 21. .

This signal informs the scan unit, which is connected to the five-line bus, that the connector module has shunting shortcuts (cards) to be read. Then, if the scanning unit determines 0, the SEL line of the five-line bus is switched to a low level, and the fifty-fifth bit of the multiplexer 18, which is the (top) last section of the 32-bit bus, respectively, is connected to the SDS 19 of the special function. the output contact selected by the positive identity signal stored in register 8.

After this bit is read by the scan unit through the SDS line, this block affects the RLJ line of the five-line bus and reaches pin 19 of the special function integrated circuit of the same name. As the contact potential moves from low to high, the meter 12 is moved one step forward and prepares the multiplexer 18 to receive the next read bit.

The scan unit then reads the 31st bit. This process is continued, repeated, and bit-by-bit reconstruction of the contents of the impulse storage device is performed.

Upon completion of the content zero bit, the next bit that appears in (32) is the 23rd bit of the client code, and by repeatedly pulsing the RLJ signal, all other code bits to the content zero bit are received through the SDS output.

Thus, the scan unit successfully obtains the contents of the zero position encoded pulse buffer and the user code. The five-line bus SEL line then returns to a high level and, by pulsing the RLJ line from low to high, all the position meters 9 move one step forward from zero and the zero position encoded pulse train is disconnected. If the position is one encoded unit, it is switched on in the connecting pulse storage module and can be read in the same way as the first one.

If the scan unit registers that there is no card for a given position, it does not read, so the RLJ line is repeatedly searched for the next unit.

When the setting circuit finishes reading the last pulse accumulator of the connecting module, the scan unit associated with the same five-channel bus goes to the second scan cycle of the accumulator module and stores the contents of the second read.

Both scans are performed separately, but the scan is correct if they are both overlapping, that is, if the scanned pulse numbers and all codes and the pulse count read are the same. If there is a discrepancy in the received pulses, the number should be slightly higher than in the first scan.

If the results of the two-cycle scan are different, the scan circuit repeats the scan. The scan procedure is repeated up to five times, it can be programmed, and the number of iterations can be increased or decreased. After scanning, if there are no differences in the results, the scanning device starts the information procedure.

To reduce the influence of line and cable noise, the INP, SEL and RLJ inputs are connected via Schmidt triggers. Other Inputs, Vol. y. 16, 20, and MES are common low-power logic inputs, and set the lines to low or high, depending on whether it is for code processing or reading control lines.

Within the special function integrated circuit 19, the user code signal lines 20 are coupled to a set of logic elements that decode the user code HFFFFFF and HFFFFFE.

The HFFFFFF code is used to reset the user meter when the power batteries are inserted. The code HFFFFFE is used to test the internal modules of the special function integrated circuit 19 manufacturing process.

The user identification code forms a set of tracks 16 that are initially connected. For those tracks that are needed to form the user number binary code transmitted to the pulse storage 2, the connection is terminated.

In the printed circuit board, the ground path, which is intended to form a low level, is connected not directly to the jumper, but through a resistor, which allows supplying all inputs to the 16 high level by connecting two dots on the printed circuit board.

Such a commutation is implemented by a special circuit in the special function integrated circuit 19, and this commutation sets the binary counter 6 to zero when it is ready for operation when it is mounted in the pulse storage unit 2 and when replacing the power batteries.

In this way, the user identification code is not memorized internally in advance, nor can it be changed at any time. The identification code is fed into the inputs of the multiplexer 18 via the internal connections.

The external connector 14 in the aforementioned connector module 3 may be far from this module if the meters are to be surveyed without the operator entering the enclosure containing the meters.

The two external connections 14 may be arranged as follows: one on the connecting module and the other on the outside of the room containing the meter 1.

The maximum distance between the connector module 3 and the connector for connecting the scan module can be up to 100 m.

Another feature of the connecting module 3 is that a plurality of such modules may be arranged at different locations and may be interconnected and interrogated from one location, which means that the number of impulse storage devices 2 in the present embodiment may not exceed 512 but that number may be increased if necessary.

All of these capabilities allow for many applications with non-standard installations, such as in buildings with water meters on each floor and scanned one by one using current metering systems.

The invention provides for the installation of a connecting module on each floor with the required amount of pulse storage units (4, 6 or 8, depending on the number of flats on the floor). Each connecting module 3 is connected to another module one floor below by a cable. The end of this cable is located, for example, in the lobby of a building and is connected to a connector 14 to which a portable scanning device is connected and is used to scan all meters in the building.

One of the scanning units has a portable polling processor 5 'mentioned above and the other may be a portable scanning interface 4 to which a conventional computer 5 may be connected such that the portable interface 4 is another scanning means capable of connecting to any computer through a serial a port through which the impulse storage devices 2, which are contained in modules 3, are polled using a five-pin connector connected to a five-line bus.

The portable scanning interface 4 has a means for viewing the number stored on each pulse storage device 2. The stored number is read through a five-line bus to which all pulse storage devices are connected in connection module 3, which are accessible via cable and connector 14, as explained above.

The portable scanning interface 4 is made as a portable device and has a belt. The portable scanning interface 4 has a microprocessor 35 which is an active means of operation of said portable scanning interface 4. The microprocessor 35 is connected to an EPROM-type program memory 36, a RAM-type operational memory 37, and a PIA-type external signal connection circuit 38.

Microprocessor 35 is coupled to generator 39 for proper operation of the device.

An external signal connection circuit 38 is connected to the RES, SEL, RLJ, SDS, and GND outputs of the five line bus lines via signal transistor amplifiers and matching circuits.

In addition, the external signal connection circuit 38 has a serial communication channel consisting of a signal amplification transistor 43 of the logic circuit 42 and the other elements shown in FIG. 5 for connecting a portable PC 5 over, 41 for connecting.

The logic 44 selects the required direction depending on the commands received.

When the microprocessor 35 is activated, all input and output signals, as well as the external signal connection circuit 38 and the serial communication circuit 41, are initialized with a given program. In addition, various RAM locations are prepared for their intended use and await commands from the portable PC 5 over a serial communication line.

Said portable computer 5 transmits an RES signal to a portable scan unit interface circuit 4 which recognizes such a signal and performs the initialization process as mentioned above.

In addition, a control command is used, which is received by said portable interface 4, which responds to this command via serial port 41 by sending a text string which indicates the model and version of the program which is written therein.

When the conventional portable computer 5 transmits a scan signal to the portable scanning interface 4, it begins sending signals to each pulse drive 2 for scanning as explained above. Once all of this information in the switching module 3 pulsed storage devices 2, to which the scanning interface 4 is connected, is collected, the process of transformation to a sequential code with a fixed 21-character format begins. All of this is sent over a serial communication line 41.

Upon receipt of this information, the application of a conventional portable computer 5 adds a database, which is located in the data processing center, searches for a file containing the found codes and replaces it with new scanned pulses, adding the scan date.

Then, after connecting the portable computer 5 to the central computer, it registers and forms a bill for payment.

The portable scanning interface 4 powers each pulse storage device 2 as it is read, through a battery connected to the circuit and capable of being recharged.

In another embodiment, the meters may be automatically scanned remotely. In this embodiment, the connecting module 3 may be connected to one or more connecting modules 3, which in turn may be connected to a stationary unit 46, which comprises a receiver-transmitter antenna 47 for receiving and transmitting information data.

The data receiver-transmitter 54 is connected to a remote scan 55 which communicates with the connecting module or modules 3.

In another embodiment of the invention, there is a mobile unit 56, which is installed in the vehicle 49 and is connected to its batteries.

The mobile unit 56 comprises a portable computer 57, which is connected to a remote scanning device 58, which in turn is connected to a data receiver-transmitter 59, and which transmits and receives data via the antenna 48.

The portable computer 58 has a recordable program that indicates the daily operating procedures and users to be serviced. All of this information is received and transmitted to a central computing machine via means 50, which may be a high density, removable hard disk or a floppy disk.

Executing a program entered into the portable computer 57 is a remote scanning device 58 which interrogates said devices via a data receiver-transmitter 59 located near a fixed device 46 which reads data stored in the connecting module 3 and sends it to the mobile device 56. having a portable computer 57 which processes the data. From there, the data is transmitted to a central computer 51, where the final data accounting is performed.

The stationary remote reading device 5 is controlled by a microprocessor 60 containing a program stored in an EPROM-type memory.

Further, the microprocessor 60 is coupled to a RAM-type memory 61 and a ROM-type memory 62.

The remote reading device 55 has an input port 64 coupled to a decoder 65 which is coupled via a tuning circuit 66 to a receiver 67 of a data transceiver 54.

The remote scan unit 55 also has a first output port 63, which is coupled to an encoder 69 via a switch 68.

The encoder 69 is connected via a second tuning circuit 70 to a transmitter 71 which is in a data transmitter 54.

The first output port 63 is coupled to the electronic circuit 92 via the matching circuit 71 ', which controls the state of the data transceiver 54, i. y. determines that the transceiver is receiving or transmitting data. The microprocessor 60 is coupled to a second output port 72 which is coupled to the different coupling modules 3 via a matching circuit 73.

The input port 64 is connected to the connection module 3 via a matching circuit 74 through which the data and status of the meter 1 are fed to the input port 64.

The number 75 denotes a clock generator which enables the remote scanning device 5 to operate.

In standby mode, transmitter 71 is off and receiver 67 is on, and is waiting for commands to arrive on the radio channel. To identify the different devices 46, an identification number is entered and stored in an EPROM-type memory.

Each time the scanner receives a command, it is decoded in decoder 65 and compared to commands in microprocessor 60 in an EPROM-type memory. If they overlap, the received command passes through encoder 69 and is further sent through transmitter 71. As a result, all pulse storage devices connected to the stationary device 46 contained in one or more connection modules 3 are scanned. time, avoid pulsed accumulators are read several times. Upon detection of multiple overlaps, the scanned result is sent to the transmitter 71 of the stationary device 46 and then to the mobile device 56.

The stationary device 46 then disconnects the transmitter 71 and waits again for new data to be received.

The mobile unit can be essentially installed in a car or motorcycle with a 12-volt power supply.

It should be noted that the stationary device 46 has a power circuit 76 which is coupled to the control circuit 77, so that power consumption is reduced.

It should also be noted that the mobile device 56, as discussed above, has the same transceiver circuit as the stationary device and is powered by the battery of the car in which it is installed.

In addition, the data transceiver 59 of the mobile device 56 has a transceiver 78, a receiver 79 and an electronic circuit 80 which controls the status of the data transceiver.

The remote scanning device on the portable computer does not have a microprocessor. The microprocessor functions as a portable computer 57, which is connected to the car power supply and receives the power required for operation through the voltage converter unit 81.

The portable computer 57 is coupled to the remote control unit 58 via a matching circuit 82.

The remote scanning circuit 58 has an output port 83 which is coupled via a switch 85 to an encoder 86.

Encoder 86 is coupled to transmitter 78 via matching circuit 87.

In addition, the output port 83 is coupled to the tuning circuit 88, which is further coupled to the transceiver status control electronic circuit 80.

In addition, remote scanning device 58 has an input port 84 connected to decoder 90 and further through tuning circuit 89 to transceiver 79.

Block 90 is a clock generator that enables the circuit to function.

Each time a polling signal is received from stationary unit 46, mobile unit 56 transmits a poll confirmation signal to stationary unit 46. If no acknowledgment signal is received within a few seconds, stationary unit 46 repeats it three more times. Malfunctions in the reading process may lead to omissions and errors in the data being read.

Upon receipt of the aforementioned acknowledgment signal, the portable computer 57 switches the scan circuit 55 of the stationary device 46 to the data transmission mode of the interconnecting modules 3. When all data is accessed on a portable computer, the format and checksum of the received data is checked. If the data received is correct, other nearby stationary devices that are within reach of the vehicle 49 are read on.

After all adjacent stationary units 46 are surveyed, the portable computer shows another location where the gauges will need to be surveyed. Then, while the car is changing its location, the portable computer processes the received data and updates the database files with the parameters it has just read and adds the date and time (provided by the portable computer) when they were received.

Any abnormal event, such as a meter showing no consumption, a negative result, or data coming from predicted values, is recorded as a deviation.

The database or databases on the mobile device 57 are loaded at a data processing center from a central computer 51, which is owned by a company that performs metering 1 metering and financial consumption accounting.

This exchange of data can be accomplished in a number of ways: by direct high-speed sequential transmission, by temporary processing on that large data network on a mobile PC (directly or via modem), by printing and correction as is commonly done, or by technical means such as scalable hard disks or high density flexible disks, as mentioned earlier.

Two remote-controlled encoders-decoders 69, 65, 86 and 90, respectively, are used to establish a reliable connection between stationary unit 46 and mobile unit 56. Because these blocks are designed to work in difficult conditions, they are given certain features that improve the data transmission parameters.

The above-mentioned remote control encoders-decoders operate by pulse-width control and modulate the signal using the all or nothing principle.

A system utilizing this principle, consisting of a remote scanning device 55 and a mobile scanning device 58, is used to provide frequency offsets in the allowed frequency band (12.5 kHz) within the 70 MHz bandwidth, where FSK-type modulation is obtained very simply and easily.

The remote control devices used in this system perform a complex function that reduces the possibility of erroneous actions. What is special is that correctly identifying data transmissions requires the acceptance of two characters per line. Therefore, the probability of error is very low.

By using remote controls, microprocessor 60 eliminates the need for data communication identification controls, making programming simpler and more efficient.

The embodiment in which the stored pulse scanning is performed using a portable scanning processor 5 'which is intended for use with a minicomputer must have a rechargeable power supply which is used to power the pulse storage devices during the scanning, as stated above.

The portable scanning processor has a scanning circuit 96 which is connected to a minicomputer personal computer connection 97.

At the end of the connection circuit 96 is a connector 95, to which the connecting module or modules 3 are connected.

The portable scanning processor 52, which is equipped with a connection circuit, has a parallel port 93 which is located between the ports 97 and 95. Through this port, the pulse storage is read.

The minicomputer EPROM-type memory also contains the functions that a portable scan processor 52 normally has to work with, and there is no need to record the same from another computer as it is recorded with the operating system so that the portable scan processor 52 cannot disappear.

All of the above functions of the portable scanning processor 52 can be implemented very easily on any computer having the same or similar microprocessor and operating system that can only be stored on that compatible minicomputer after verification and acceptance.

In this way, the portable scanning processor 52 with a high-end operating system quickly fits into any operating system used by the accounting company.

A RAM CMOS type with 256 kilobytes of storage can memorize a fairly large database and scanning environment that can be used to read meter data.

By connection 53, the portable scanning processor 52 is connected to a central computer 51 via a serial RS 232 port, so that the portable scanning processor 52 can transmit and receive all stored information directly or via a modem.

The portable scanning processor 52 operates as follows.

Each time it is switched on, the basic operations of the unit are checked, and input and output signals, as well as initialization of all circuits (scan circuits, liquid crystal display, etc.) are checked.

The delivery message is then displayed on the display, and questions are displayed in turn about the actions that can be taken at that moment. The operator selects the required options by pressing the letter buttons of the first words of the operation.

Each question can have sub-questions, which can also be executed by pressing the letter buttons of the first words of the operation.

Each question can have a work network and can change depending on the feature you select.

Some features have security codes such that only certain individuals on the central processing unit can use those features. This cannot be done by operators. Those special functions can be, for example, timer parameters, equipment number, and so on. exchange.

The technical implementation described in this way results in a low system cost. The system can be easily and easily installed and can read 512 pulse accumulators 2 quickly, which is a very important achievement.

Technical realization also allows data to be retrieved over a certain distance from the connector module 3 via the external connector 14, which reduces the additional costs and time loss that would occur when visiting consumer apartments and homes, and allows the meter contents to be recorded without entering apartments or homes and without the involvement of the consumer. One advantage of the system is that it allows readings of various types of meters without major modifications.

The fact that each impulse storage device 2 is powered by a scan unit circuit reduces the cost and life of the Power Batteries installed in these units compared to the power supplies currently used for such systems and eliminates the need for more expensive power supplies.

The low power consumption of the described technical embodiment is due to the CMOS technology as mentioned earlier.

Claims (16)

DEFINITION OF INVENTION An automatic data reading and recording system for the centralized and / or individual reading of readings by meters (1) generating or transmitting pulses, recording the consumption of each of its contents and providing elements for storing the generated pulses, or said content is read remotely by radio communication comprising a stationary device (46) with a data transceiver (54) and an antenna (47) and a mobile device (56) with a data transceiver installed in the vehicle (49); the content read directly or by radio, is transmitted to a central computer (51) for accounting purposes, characterized in that each meter (1) generating or transmitting pulses is connected to a pulse storage device (2) which may be connected in parallel to several pulsed accumulators (2), each connected to a meter (1), pulsed accumulators The i (2) may be in a switching module or box (3) which may be connected via a connector (14) common to all impulse storage devices (2) connected to a mobile reading device having a program indicating inspection days and users polling each impulse storage device. (2) further transmitting the different states of each meter (1) generating or transmitting pulses, which are stored in a mobile reading device from which data is transmitted to a central computer when accessed for accounting purposes. 2. A system as claimed in claim 1, characterized in that the pulse capacitors (2) have a special function integrated circuit (19) having binary counters (6) to which the meters (1) for generating or transmitting pulses are connected, those binary counters (6). ) connected to registers (8) allowing independent reading of binary counters (6) which in turn are connected to logic elements to which the reading device is connected, said pulse storage device (2) having a plurality of inputs (7) used for reading by the user. and connecting to the logic circuit and to the multiplexer (18), which in turn is coupled to the binary counter (6) such that when the pulse storage device is polled by the scanning device, the contents of the binary counter (6) and the user identification number are transmitted, and · the meter status and user identification number are read. 3. A system as claimed in claim 1, wherein each pulse accumulator (2) and each special function integrated circuit has a position meter (9) allowing shunting of a plurality of pulse accumulators (2), so that each of said meters can be selected and read. initialized scan state, state. 4. A system as claimed in claims 1-3, wherein the impulse storage device comprises a lithium battery and the scanning device is provided with a power supply which feeds the reading device and the impulse storage device (2) during the scanning, all in order to reduce the power consumption of the impulse storage device and increase its operational autonomy. 5. The system of claim 1, wherein the scanning device may comprise a portable scanning interface (4) comprising a microprocessor (35) coupled to a RAM-type memory (37) and an EROM-type memory (36) as well as a peripheral a matching circuit (38) through which the scanning interface (4) is connected to a pulse storage device (2), said peripheral matching circuit (38) having a serial communication channel (41) to which a conventional portable computer can be connected. 6. A system according to claims 1-5, characterized in that the connector (14) of the connecting module (3) for connecting the scanning circuit can be located at a distance from the connecting module (3) for reading the pulse generating meters (14). 1) without entering the premises or places where they are installed. 7. A system according to claims 1-6, characterized in that it can be connected to other data receiving systems. 8. A system according to claims 1-7, characterized in that the special function integrated circuit (6) of the pulse storage device (2) is connected via an RC filter to eliminate interference in the connecting cables and to reduce power consumption when the pulse contact is closed. 9. A system according to claim 1, characterized in that the connecting module or modules (3) can be connected to a stationary device (46) having a data transmitter-receiver (54) with an antenna (47) and a remote reading device (55). connected to each other and to the connection module (s) (3), the mobile device (56), which is mounted on the vehicle (49) and connected to its batteries, has a portable computer (57) running a program providing inspection days and users, whose information is to be collected, which is connected to a remote reading device (58) connected to a data transceiver (59) having an antenna (48) in the presence of a vehicle near a stationary device (46), which may be interrogated by a mobile device (56), sending to the stationary device (46) a code which is expected to be received and subsequently responds with the same code and then transmits the status of each meter (1), ri is in the pulse storage of the connecting modules (3). 10. The system of claim 9, wherein the stationary device (46) has a remote reading device (55) having a microprocessor (60) controlling said circuit and coupled to an input port (64) coupled to the remote control decoder (65). and via a matching circuit (66) with a receiver (67) for receiving the identification code (46) transmitted by the mobile device (56) to be decoded if it coincides with a code stored in the EPROM type of the microprocessor (60). in the memory, the transmitter (71) is activated and sends the same code, and the data stored in the connecting module (3) is read and transmitted to the mobile device (56). 11. The system of claim 9, wherein the microprocessor (60) in the remote reading device (55) is coupled to a first output port (63) which is connected to a remote control encoder (69) which, via a switch (68) and the circuit (70) being connected to the transmitter (71), all for transmitting the identification code and data read from the pulse storage units in the connecting module (3). 12. A system according to claim 9, characterized in that the power supply unit of the stationary device (46) is connected to the mains and the control circuit (77) is connected to the connecting module (3) via a matching circuit (73) connected to the second a port (72) coupled to the microprocessor (60), said connecting module or modules being connected to the input port (64) via a matching circuit (74), 5. that the stationary device (46) supplies power to the connection module or modules (3) when the data is read through the input port (64), and turns off the power when reception is complete. 10th 13. The system of claim 9, wherein the remote scan unit (58) of the mobile unit (56) has an output port (83) connected to the switches (85) to the remote control encoder circuit (86) for transmitting command commands to the stationary unit. , which is coupled to the transmitter (78) via a matching circuit (87). 14. A system according to claims 9 and 13, characterized in that the remote reading device (58) of the mobile device (56) has an input port (84) connected to the remote control encoder and via a tuning circuit (89) to the receiver (79), for receiving data from a remote device (46) of a stationary device (46). 15. The system of claim 9, wherein the remote scanning device (58) is coupled to a portable computer (57) via a bus alignment circuit (82) for realization. 30 communication between them, and that a portable computer (57) could interrogate many stationary devices (46). 16. The system of claim 1, wherein the scanning device may be portable 35 scanning processor (5 ') consisting of a portable minicomputer, which is connected via a connector (97) and a parallel port (93) to a connector (95) to which a connector module (s) (3) can be connected directly to the pulse storage contents to scan.