JPH0576182U - Wireless data collection device - Google Patents

Abstract

(57) [Abstract] [Purpose] When collecting data using wireless stations equipped with various data generators, efficiently and automatically set the data collection route even if the location or number of data generators is changed. To provide a wireless data collection device capable of performing. [Structure] A plurality of slave stations 4 are wirelessly connected in a hierarchical manner, and the electrolytic strength of each slave station 4 is used for setting a route or a hierarchical structure for relaying these slave stations 4 to collect data. Focusing attention, one of the slave stations 4 is selected as the host station 3 and an electric field strength request signal is sent from the host station 3 to each of the slave stations 4, and the host station 3 is selected according to each electric field strength. Each slave station 4 hierarchically to 3
Are wirelessly connected to each other, and each data from each data generator is relayed through these slave stations 4 and sequentially collected in 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.

Further, when systematically collecting data from a plurality of data generators, switch settings were manually performed when determining the relay route, but in such a case also There is a problem that the setting needs to be changed according to the arrangement change, addition, and deletion, and the operation is troublesome in the manual route setting.

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

[0006]

[Problems to be solved by the device]

 The present invention has been made in consideration of the above problems, and when collecting data using a radio station equipped with various data generators, a data collection route is used even if the installation location or number of data generators is changed. It is an object of the present invention to provide a wireless data collection device capable of efficiently and automatically setting.

[0007]

[Means for Solving the Problems]

 In other words, the present invention is to connect wirelessly a plurality of slave stations in a hierarchical manner and utilize the electrolytic strength of each slave station to set a route or a hierarchical structure when relaying these slave stations to collect data. This is a wireless data collection device that collects respective data from a plurality of data generators, and a slave station is connected to each of the plurality of data generators. , A self-data memory that stores the self-data from the above data generator to which the slave station is connected, and a slave station data memory that stores slave station data from another slave station that is 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, the self-data memory, the slave station data memo. , And a control circuit for controlling the transmitting unit and the receiving unit, and selecting one of these slave stations as a host station, and sending an electrolytic strength request signal from this host station to each slave station. , Each slave station is wirelessly connected to this host station hierarchically according to each electrolysis strength, and each data from each data generator is relayed through these slave stations and collected in sequence to the host station. It is a wireless data collection device characterized by the above.

It is possible to register a slave station having a predetermined level of electrolytic strength or higher as a slave station of the host station and select one of the registered slave stations as a temporary host station.

Furthermore, the electrolytic strength request signal can be sent from the temporary host station to the slave stations whose electrolytic strength is below a predetermined level.

[0010]

[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, when wirelessly connecting each slave station to this host station in a hierarchical manner, the slave station is registered as a slave station in the host station according to the electrolytic strength of each slave station. The above hierarchical structure or relay route can be set in (auto route setting).

For example, it is assumed that electrolytic strength data is transmitted from each slave station in response to an electrolytic strength request signal from the host station, and a slave station having a predetermined level or higher of this electrolytic strength data is registered as a slave station of the host station. be able to.

In addition, by selecting one of the registered slave stations as a temporary host station and sending an electrolytic strength request signal from the temporary host station to a slave station whose electrolytic strength is below a predetermined level. In the same manner as described above, the operation of registering the slave station in the temporary host station can be repeated to set the hierarchical structure or tree structure.

[0013]

【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. 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 is appropriately selected from the above-mentioned slave stations 4 such as one closest to the center station 2 or one provided in a data generator installed at a position convenient for operation, and the host station 3 is selected. 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 is provided with the wireless data collection device 1 in the data generator 9, 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 appropriately dispersed and arranged 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 above-mentioned automatic route setting or manual setting by switch operation. The host station 3 can determine in which order in which the slave station 4 is controlled.

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

FIG. 3 is a flow chart showing the control when collecting all the data of each slave station 4 into the host station 3. First, the host station 3 in step S1 sends all the 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 slave station 4 that has not yet received data, the process returns to step S1 to repeat the above-described operation, and when reception is completed, the entire data collection operation is ended.

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).

If the mobile station 4 is still present in the lower layer of the local station in step S5, for example, the mobile 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 lower layer than the self station are detected. 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 in the same manner 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. 1), 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 relating to a route to reach any of the slave 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. In step S22, the route analysis of the data relay route is performed and the data concerned 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 data request signal of step S26 is received by the child station 4 in the lower layer in step S30, and then route analysis is performed 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 self 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 this electrolytic strength request signal in step S41, and sends out 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 S 46 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 S44, the above operation is repeated.

After transmitting the electrolytic strength request signals to all the slave stations 4, it is determined 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.

The 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 sends out 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 a radio wave reachable range 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 S58 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 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 the slave stations 4 in the lower layer of the host station 3, the group of the 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 in accordance with the type of data and the like in collecting data from various devices equipped with a microcomputer or a personal computer. ..

[0061]

[Effect of the device]

 As described above, according to the present invention, when a hierarchical structure composed of a host station and slave stations is constructed without using a dedicated repeater or a wired connection structure, the relay route is automatically set without manual operation. Can be set, and it becomes possible to cope well with the layout change, addition, and deletion of the data generator.

[0062]

[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 (3)

[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 each of the slave stations, and one of these slave stations is selected as a host station. A signal is transmitted, and each slave station is wirelessly connected to this host station in a hierarchical manner according to each electrolytic strength, and each data generator relays each data through these slave stations to the host station. A wireless data collection device characterized in that the data is collected sequentially. 2. The slave station having the electrolytic strength of a predetermined level or higher is registered as a slave station of the host station, and one of the registered slave stations is selected as a temporary host station. The wireless data collection device according to item (1). 3. The wireless data collecting device according to claim 2, wherein the temporary host station sends an electrolytic strength request signal to the slave station whose electrolytic strength is lower than a predetermined level.