JPH0576183U - Wireless data collection device - Google Patents

Abstract

(57) [Abstract] [Purpose] When collecting data using wireless stations equipped with various data generators, wireless data that can collect data from the data generators in a relatively wide range using multiple wireless stations. Providing to provide a collection device. [Structure] Focusing on hierarchically wirelessly connecting a plurality of slave stations 4 and relaying the slave stations 4 to collect data, each of the slave stations has its own data memory and slave station data memory. , A transmitting unit, a receiving unit, and a control circuit, one of the slave stations 4 is selected as the host station 3, and each slave station 4 is wirelessly connected to the host station 3 in a hierarchical manner to transmit each data. It is characterized in that each data is relayed from the generator through these slave stations 4 and is collected in sequence to the host station 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wireless data collection device, and more particularly to a wireless data collection device that collects various data from a data generation device or a data generation device (hereinafter referred to as “data generation device”).

[0002]

[Prior Art]

 Conventionally, when trying to collect various data from the data generating device by a wireless device, there is a problem that only data can be collected from the data generating device installed within the range where the radio wave of the data collecting device reaches.

Further, when collecting data in a relatively wide range, since the data collecting device having a dedicated wire relay path is used, the data collecting place is changed or added such as changing the installation place of the data generating device. Another problem is that it is difficult to deal with deletion.

Various problems related to such data collection are common to data collection from various devices equipped with a microcomputer or a personal computer.

[0005]

[Problems to be solved by the device]

 The present invention has been made in consideration of the above problems, and when collecting data using wireless stations equipped with various data generation devices, it is assumed that a plurality of wireless stations with limited radio wave coverage are used. In addition, it is possible to collect data from each data generator in a relatively wide range covered by such multiple radio stations, and even if the installation location of the data generator or the data content to be collected is changed. An object of the present invention is to provide a wireless data collection device that can collect data efficiently.

[0006]

[Means for Solving the Problems]

 In other words, the present invention focuses on hierarchically wirelessly connecting a plurality of slave stations and relaying these slave stations to collect data. Wireless data collection device for collecting data of the above, wherein a slave station is connected to each of the plurality of data generators, and each of the plurality of slave stations is connected to the data generator to which the slave station is connected. Self-data memory that stores its own data, slave station data memory that stores slave station data from other slave stations connected to other data generators, and wireless that sends signals to other slave stations. Type transmission unit, wireless type reception unit for receiving signals from other slave stations, and control for controlling the self data memory, slave station data memory, transmission unit and reception unit. , And one of these slave stations is selected as the host station, and each slave station is wirelessly connected to this host station hierarchically, and the respective data from the above-mentioned data generators are transmitted to these slave stations. The wireless data collection device is characterized in that the data is relayed via the network and sequentially collected in the host station.

In addition to the first aspect, a second aspect has a route memory for storing a data relay route between the respective slave stations, and a plurality of respective data from the respective data generators. The wireless data collection device is characterized in that the data is relayed through the slave station according to the data relay route and sequentially collected in the host station.

In the first and second inventions, the host station may collect data from each slave station by transmitting a data request signal to the slave station.

The data request signal may be an all data request signal requesting data collection from all the data generators.

The data request signal can be an individual data request signal requesting data collection from a particular data generator.

[0011]

[Action]

 In the wireless data collection device according to the present invention, a plurality of wireless stations whose radio wave reach is limited are used, each wireless station is a slave station, and one of these slave stations is selected as a host station. In addition, each slave station was wirelessly connected to this host station in a hierarchical manner, and each slave station was relayed so that data could be collected sequentially to the host station. Can be made wider than the limited radio wave reaching range of the slave station, and data from each data generator can be collected in any range.

That is, data from each slave station can be collected by a data request signal from the host station.

For example, by sending the all data request signal as the data request signal, the data from all the slave stations can be collected.

Further, as in the second invention, it is possible to collect only the data from a specific slave station according to the data relay route. In this case, the data request signal can be an individual data request signal.

Even when the installation location of the data generator is changed, the hierarchical structure of each slave station and the data relay route to the host station are set in the switch or written in the ROM in the control circuit. This can be changed at any time by performing manual setting by means such as the above, or automatic setting, and it is possible to flexibly cope with various changes unlike the case of wired connection.

[0016]

【Example】

 Next, a wireless data collection device 1 according to an embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a systematic wireless connection configuration diagram of the wireless data collection device 1, in which the wireless data collection device 1 includes a center station 2 for operating the wireless data collection device 1 and a host station. 3 and a plurality of slave stations 4 wirelessly connected to the host station 3 in a hierarchical or tree structure.

The center station 2 is operated by a data collection operator or a central data collection control unit, and collects data collected from each slave station 4 to the host station 3. This center station may be fixedly installed or may be carried by an operator and used, and the host station 3 may be connected by wire or by wire.

The host station 3, such as the one closest to the center station 2 or the one installed in a data generator installed at a position convenient for operation, is appropriately selected from the slave stations 4 and is selected as the host station 3. It is what

For convenience of the following description, the so-called uppermost slave stations 4 connected to the host station 3 are (10), (11), (12). ． ． And Child stations (10), (11). ． The slave stations 4 of the next layer connected to are designated as (20), (21) and (22). Furthermore, child stations (20), (21). ． The slave stations 4 of the next layer connected to (30), (31), (32). ． ． And Similarly, an arbitrary number of slave stations 4 are provided according to the range covered by the wireless data collection device 1.

FIG. 2 is a circuit configuration diagram of the host station 3 and each slave station 4. The host station 3 and the slave station 4 have the same hardware configuration, and the control circuit 5 and the transmission unit 6 are It has a receiving unit 7, a reception level discriminating circuit 8, a self data memory 10 for storing data from the data generator 9, a slave station data memory 11 from another slave station 4, and a route memory 12.

The control circuit 5 of the host station 3 stores a program for driving the host station 3, and the control circuit 5 of the slave station 4 stores a program for driving the slave station 4. Each operation will be described later with reference to FIGS.

The transmission unit 6 and the reception unit 7 are circuits for performing data communication from the host station 3 to each slave station 4 or between the slave stations 4.

The reception level determination circuit 8 determines the reception level of the electrolytic strength data of each slave station 4. When the hierarchical structure of the host station 3 and the slave station 4 shown in FIG. 1 is automatically set, the data transmission / reception route (auto route) is determined by determining the reception level of the electrolytic strength data. This automatic route setting will be described later based on FIG.

The self-data memory 10 includes the data generator 9 equipped with the wireless data collection device 1, and various self-data generated by the data generator 9 or created by the data generator 9 are stored in the self-data memory 10. This self-data is finally collected by the center station 2 via the host station 3.

It is assumed that the data generators 9 are arranged so as to be appropriately dispersed in a predetermined range.

When the slave station data memory 11 communicates the slave station data from another slave station 4 to the slave station 4 in the upper layer or the host station 3 via the slave station 4, such slave station data is stored. Is stored in the center station 2 via the host station 3 together with the self-data stored in the self-data memory 10.

The route memory 12 stores the hierarchical structure between the slave stations 4 set by the automatic route setting or by manual setting by switch operation. The host station 3 can determine in which order in which the slave station 4 is controlled.

Although the driving power source of the wireless data collection device 1 is not shown in the figure, the power source of the data generation device 9 may be used or may be provided independently.

FIG. 3 is a flowchart showing the control in the case where all data of each slave station 4 is collected in the host station 3. First, the host station 3 in step S1 sends all registered slave stations 4 to each other. (In FIG. 1, all the data request signals are transmitted to the slave stations (10), (11), (12) ...) One by one, the required data is received in step S2, and in step S3 It is determined whether or not all the slave stations 4 have ended.

If there is a child station 4 that has not yet received the data, the process returns to step S1 to repeat the operation described above, and when the reception is completed, the entire data collection operation is completed.

When all the data request signals are transmitted from the host station 3 in step S 1, the slave station 4 receives this in step S 4, and there is a slave station 4 in a lower layer with respect to the own station as the slave station 4. It is determined whether or not (step S5).

When the slave station 4 is still present in the lower layer of the own station in step S5, for example, the slave stations (20), (21), (22). ． ． In such a case, stand in the same position as the host station 3, send an all data request signal to the slave station 4 of its own station (step S6), receive the necessary data in step S7, In step S8, it is determined whether or not the data reception of all slave stations 4 is completed.

If the data has not been received yet, the process returns to step S6 and the above-described operation is repeated. When the reception is completed, in step S9, the self data and all the slave station 4 data in the layers lower than the self station are stored. Is sent to the master station (host station 3), and the processing ends.

The all-data request signal transmitted in step S6 is received by the slave station 4 in the lower layer in step S10, and it is determined in step S11 whether or not there is a slave station 4 as in step S5. Repeat the above operation.

In step S5 and step S11, when there is no slave station 4 below the own station, that is, when the own station is the lowest slave station 4, for example, the slave stations (30), (31), (in FIG. 32). ． ． In such a case, in step S12 and step S13, the local station data is transmitted to the host station 3 or the slave station 4 in the upper layer of the local station, and the transmitted self data is transmitted to the host station 3 or the upper layer slave station. Station 4 receives in steps S2 and S7.

In this way, data is sequentially accumulated from the lower layer side of the slave station 4 of each layer, and finally the center station 2 can suck up all the data via the host station 3.

Next, FIG. 4 is a flow chart showing the control in the case of collecting the data (individual data) of a certain specific slave station 4 in the host station 3. The host station 3 establishes the data relay route in step S20. In addition, the data request signal is sent to the slave station 4 in the layer immediately below.

The data relay route is data regarding a route to reach any of the child stations 4 as a target.

For example, when the data of the slave station (30) in FIG. 1 is to be collected, the host station 3 relays the slave stations (10) and (20) to reach the slave station (30). The relay route is added to the data request signal (individual data request signal) and sent to the slave station (10).

The data request signal in step S20 is received by the slave station 4 (slave station (20) in the above example) in the lower layer in step S21, the route analysis of the data relay route is performed in step S22, and the relevant data is received. In step S23, it is determined whether or not the request signal is for the own station.

If it is for its own station, it sends its own data in step S24 and ends.

The host station 3 receives this data in step S25.

If the judgment in the above step S24 is not for the own station, the data request signal is relayed to the next relay station in step S26 and is stored in the slave station 4 which requested in step S27. The data is received, the route is analyzed in step S28, and the data is transmitted as response data together with the data relay route to the upper layer slave station 4 in step S29, and the process ends.

The lower layer slave station 4 receives the data request signal of step S26 in step S30, and then performs route analysis in step S31 as in step S22 and step S23. It is determined in step S32 whether or not

Whether it is for the own station or not, the own data is transmitted in step S33, and the process ends.

If the judgment in the above step S32 is not for the own station, in the same way as when the data request signal is relayed to the next relay station in step S26, it is further transmitted to the lower layer slave station 4 (relay station). Repeat the data request signal and repeat the same steps as above.

Thus, the necessary data can be collected from only the specific slave station 4.

The data relay route or the hierarchical structure shown in FIG. 1 can be set in advance by a predetermined manual operation, but the route is automatically set (auto route setting). You can

That is, FIG. 5 is a flow chart showing the control of such automatic route setting, in which the host station 3 sends an electrolytic strength request signal to a certain slave station 4 in step S40.

The slave station 4 receives the electrolytic strength request signal in step S41, and sends the electrolytic strength data of its own station in step S42.

The host station 3 receives the electrolytic strength data in step S43, and determines in step S44 whether the electrolytic strength exceeds a certain level.

If the level exceeds a certain level, it is determined that the slave station 4 is relatively close to the host station 3 within the radio wave reachable range. Register as a lower layer slave station 4.

If the electrolytic strength is below a certain level, it is judged in step S46 whether or not the electrolytic strength request signal has been sent to all the slave stations 4, and when the slave stations 4 still remain. To return to step S44, the above operation is repeated.

After transmitting the electrolytic strength request signals to all the slave stations 4, it is judged in step S47 whether or not there is any unregistered slave station 4, and if there is no slave station 4, the process ends. In step S48, one of the registered slave stations 4, that is, one of the slave stations 4 whose radio wave has sufficiently reached is set as a temporary host station.

This temporary host station receives the temporary host setting signal in step S49, and the host station 3 transmits the numbers of the remaining slave stations 4 other than the temporary host station to this temporary host station in step S50. The temporary host station receives the numbers of the remaining slave stations 4 in step S51.

In step S52, the temporary host station transmits the electrolytic strength request signal in the same manner as in steps S40 to S46, and the unregistered slave station 4 receives this electrolytic strength request signal (step S53). In step S54, the electrolytic strength data of its own station is transmitted, the temporary host station receives the electrolytic strength data in step S55, and in step S56, it is determined whether the electrolytic strength exceeds a certain level.

If the level exceeds a certain level, it is determined that the mobile station 4 is a relatively close mobile station 4 within the range in which radio waves can reach from the mobile station 4 which is the temporary host station, and in step S57. This is registered as the slave station 4 immediately below the host station 3.

If the electrolytic strength is below a certain level, it is judged in step S 58 whether or not the electrolytic strength request signal has been sent to all the slave stations 4, and if the slave stations 4 still remain. To return to step S52, the above operation is repeated.

After transmitting the electrolytic strength request signal to all the slave stations 4, the registration data is returned to the host station 3 in step S59, and the host station 3 receives the registration data in step S60, It returns to S47 and repeats the above-mentioned operation.

Thus, the group of slave stations 4 in the lower layer of the host station 3, the group of other slave stations 4 in the lower layer of this slave station 4, and the group of the slave stations 4 in the lower layer ,. ． ． ． In this way, the hierarchical structure shown in Fig. 1 is automatically set.

Therefore, it is possible to save the trouble of collecting the data of the data generator 9 that needs to collect the data or setting the relay route, and it is possible to cope with the arrangement change, addition, and deletion of the data generator 9. ..

The wireless data collection device 1 according to the present invention can be applied to any field depending on the type of data and the like in collecting data from various devices equipped with a microcomputer or a personal computer. ..

[0064]

[Effect of the device]

 As described above, according to the present invention, a hierarchical structure composed of a host station and a slave station is constructed without using a dedicated repeater and a wired connection structure, and even if the reach of radio waves is limited, Data can be collected from a relatively wide range of data generators covered by the slave station, and data can be collected efficiently.

[0065]

[Brief description of drawings]

FIG. 1 is a systematic wireless connection configuration diagram of a wireless data collection device 1 according to an embodiment of the present invention.

FIG. 2 is a circuit configuration diagram of a host station 3 and each slave station 4 in the wireless data collection device 1 of the same.

FIG. 3 is a flowchart showing the control when collecting all data of each slave station 4 in the host station 3.

[FIG. 4] Similarly, data of a specific slave station 4 (individual data)
FIG. 6 is a flowchart showing the control in the case of collecting data in the host station 3.

FIG. 5 is a flowchart showing control of automatic route setting.

[Explanation of symbols]

1 wireless data collection device 2 center station 3 host station 4 slave station 5 control circuit 6 transmission unit 7 reception unit 8 reception level determination circuit 9 data generator 10 self data memory 11 slave station data memory 12 route memory S1 to S13 each child Steps of control when collecting all data of station 4 in host station 3 S20-S33 Steps of control when collecting data (individual data) of a specific slave station 4 in host station S40-S60 Auto route setting Control steps

Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location H04Q 9/00 321 D 7170-5K

Claims (5)

[Scope of utility model registration request] 1. A wireless data collection device for collecting respective data from a plurality of data generators, wherein a slave station is connected to each of the plurality of data generators. , A self-data memory for storing self-data from the data generator to which the slave station is connected, and a slave-station data memory for storing slave station data from another slave station connected to another data generator A wireless transmission unit for transmitting a signal to another slave station, a wireless reception unit for receiving a signal from another slave station, the self-data memory, slave station data memory, transmission unit and reception unit And a control circuit for controlling, and selects one of these slave stations as a host station and wirelessly connects each slave station to this host station hierarchically,
A wireless data collection device, characterized in that each data is relayed from each data generation device through these slave stations and sequentially collected by the host station. 2. A wireless data collection device for collecting respective data from a plurality of data generators, wherein a slave station is connected to each of the plurality of data generators, and the plurality of slave stations are respectively , A self-data memory for storing self-data from the data generator to which the slave station is connected, and a slave-station data memory for storing slave station data from another slave station connected to another data generator A wireless transmission unit that transmits a signal to another slave station, a wireless reception unit that receives a signal from another slave station, and a route memory that stores a data relay route between the slave stations. A control circuit for controlling the self-data memory, slave station data memory, transmitting unit, receiving unit and route memory, and one of these slave stations Each slave station is wirelessly connected hierarchically to this host station while being selected as a station, and each data from each data generator is relayed through these slave stations according to the data relay route and sequentially collected in the host station. A wireless data collection device characterized by the above. 3. The wireless data collection device according to claim 1, wherein the host station sends a data request signal to the slave station. 4. The wireless data collection device according to claim 3, wherein the data request signal is an all data request signal requesting data collection from all the data generation devices. 5. The wireless data collection device according to claim 3, wherein the data request signal is an individual data request signal for requesting data collection from a specific data generation device.