JP3198264B2 - Wireless terminal device for mobile object and method of operating mobile object using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio terminal for a mobile object and a method of operating a mobile object using the same, and more particularly, to a mobile terminal which is connected online to a host computer by wireless communication connection. In using,
A mobile wireless terminal device having a terminal processing function for maximizing the effectiveness of being moved and used without limiting a use place within a wireless communication effective range, and a mobile device using the same. It relates to the driving method.

[0002]

2. Description of the Related Art In recent years, there has been a growing demand for mobile terminals, for example, vehicles such as forklifts to be equipped with terminals and connected to a host computer online to perform, for example, a loading / unloading operation, a transfer operation, and the like by computer control. By the way, when a part or all between a host computer and a terminal is connected by wireless communication to realize a freely movable terminal device, a data transmission method shown in FIG. 3 is conventionally used. .

FIG. 3 is an explanatory diagram of a software configuration of a conventional data transmission system. In FIG. 3, reference numeral 10 denotes a host computer, 11A denotes application software provided in the host computer 10, a terminal communication program for controlling display data transmission and input data reception functions, and 12 denotes a terminal communication program for transmitting and receiving to and from a terminal via a wireless line. It is a communication program. On the other hand, 1A is a terminal, 2 is a communication program for transmitting and receiving to and from a host computer via a wireless line, and 4A is application software provided in the terminal 1A, and represents a terminal processing program for controlling screen display and key input functions. .

In the data transmission method, as shown in FIG. 3, data information is transmitted and received between a host computer 10 and a terminal 1A, so that the terminal 1A transmits the host computer 1
0 is displayed on the screen, or information input by key input to the terminal 1A is transmitted to the host computer 10.
In this data transmission method, originally, the host computer 1
0 is a processing program completely different from the processing program stored for the terminal 1A to operate, for transmitting data to the terminal according to the data communication rules with the terminal in order to realize data transmission with the terminal. It is necessary to create a program and a terminal receiving program.

[0005] Furthermore, in order to realize data transmission with the host computer 10, the terminal 1A transmits a program to the host computer according to the data communication rules with the host computer 10, a program to receive the host computer, and the terminal. It is necessary to create a processing program 4A for the terminal body that realizes a screen display function and a key input processing function that operate on the body.

In addition, a part or all of the host computer and the terminal are connected by wireless communication to realize a freely movable terminal device, and the host computer stores the information so that the terminal can operate. There is a wireless LAN method as a method for operating a processing program on a terminal connected by wireless communication.

FIG. 4 is an explanatory diagram of a software configuration of a conventional wireless LAN system. 4, reference numeral 10 denotes a host computer, 11B denotes application software provided in the host computer 10, a terminal processing program for controlling screen display and key input functions, and 12 a communication program.
On the other hand, 1B is a terminal, 2 is a communication program, and 4B is a terminal processing program which is application software provided in the terminal 1B and controls a screen display execution and a key input execution function.

In the wireless LAN system, a wireless communication connection between a host computer and a terminal is intended to be realized by a function equivalent to a case of connecting by a wired communication. This wireless LAN
According to this method, when the terminal is within the effective range of the wireless communication, the host computer and the terminal can realize online connection in a normal state.

Therefore, as a function of keeping the terminal in a normal state, a function of determining whether or not the terminal itself is always within the effective range of the wireless communication is required. For this reason, a function for constantly monitoring the wireless communication state is required between the wireless LAN device on the terminal side and the wireless LAN device on the host computer side. Even when data communication does not occur, it is necessary to frequently perform wireless communication confirmation. Therefore, in the wireless LAN system, when it is determined that the terminal has gone out of the effective range of the wireless communication as a result of the communication confirmation, a normal communication state cannot be maintained,
The communication abnormal processing must be handled separately from the normal processing, and may further involve the termination of the operation of the terminal.

[0010]

A conventional data transmission system as shown in FIG. 3 and a wireless LAN system as shown in FIG.
There are the following problems. First, in the data transmission method, a processing program stored in a host computer cannot be executed by a mobile terminal device connected by wireless communication, that is, a data transmission terminal device. A processing program stored in a communication path other than wireless communication, for example, a host computer that can be executed by a terminal device connected by wired communication, is a mobile terminal device only connected by wireless communication, and The reason why it cannot be executed is that a conventional existing host computer program cannot be used.

[0011] In this case, not only is it not possible to effectively utilize software resources, but also it is necessary to newly create various programs for the mobile radio terminal device, which is inconvenient and requires a lot of development. Furthermore, in this state, it cannot be said that the mobile terminal device is online-connected to the host computer under the same conditions as the other terminal devices connected by wire.

Second, in the wireless LAN system, the mobile terminal device cannot operate normally outside the effective range of the wireless communication. In this case, although the mobile terminal device is originally intended to be freely moved and used using wireless communication, a person operating using the mobile terminal device is always visible. The wireless communication must be used while keeping in mind the effective range of the wireless communication, and the effectiveness of use while moving is lost.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art. The present invention has been made in a state where a host computer and a terminal are online by wireless communication, and within and outside the effective range of wireless communication. It is another object of the present invention to provide a mobile radio terminal device capable of functioning normally in processing operations such as key input and screen display of the terminal device, and a method of operating a mobile device using the radio terminal device.

[0014]

In order to solve the above-mentioned problems, the present invention provides: (1) a radio for a mobile body which is mounted on the mobile body and connected to a host computer by wireless communication to manage information by screen display; In the terminal device, the host computer is online-connected to the host computer so that the software of the host computer can be directly executed, and the terminal device itself is in a range where the mobile object or the terminal device can effectively communicate wirelessly with the host computer. Detecting means for detecting in the online connection state whether or not there is, in the case of the first state deviating from the range, detecting the departure and displaying a screen, and returning to the range again. In the case of the second state, a communication monitoring configuration for automatically detecting the return and automatically canceling the screen display is provided. Information can be input and output, and in the second state, the communication monitoring operation can be performed together with the information management operation in the online connection state. (2) In the above (1), the detecting means receives a beacon signal and compares the beacon signal level with a reference level, so that the terminal device itself can communicate with the mobile object or the terminal device through the wireless communication. It is configured to detect whether it is within a possible range. (3) In the above (1) or (2), the detecting means determines whether or not the terminal device itself determines whether or not the moving object or the terminal device is within the range where the wireless communication can be performed at a predetermined time interval. It is configured to detect. (4) As a method of operating a moving object equipped with a wireless terminal device connected to a host computer by wireless communication and performing information management by screen display, the wireless terminal device directly executes software of the host computer on the host computer. A first step of connecting online as possible, and receiving a beacon signal at the wireless terminal device in the online connection state and comparing the beacon signal level with a reference level, whereby the terminal device A second step of detecting whether the body or the terminal device is within a range in which the mobile computer or the terminal device can communicate wirelessly with the host computer; and A third step of detecting the detachment and displaying a screen or an alarm when it comes off; According to the fourth step, the terminal device moves the mobile object such that the mobile object or the terminal device comes within the range where the wireless communication can be performed, and when the terminal device returns to the range, the terminal device returns. A fifth step of detecting and automatically canceling the screen display or the alarm, and receiving the beacon signal at the wireless terminal device again in the online connection state, and comparing the beacon signal level with a reference level to thereby perform the movement. A sixth step of detecting whether the body or the terminal device is within a range in which wireless communication is possible. In the third and fourth steps, the information management of the information management is performed even when the wireless communication operation is interrupted. For this purpose, in the sixth step, the communication monitoring operation is enabled together with the information management operation in the online connection state.

[0015]

[0016]

[0017]

FIG. 2 is an explanatory diagram of the software configuration of the wireless LAN system of the mobile wireless terminal device according to the present invention. FIG. 2 is a schematic diagram in comparison with FIGS. 3 and 4 of the prior art, and the same reference numerals indicate the same functional units. In FIG. 2, reference numeral 1 denotes a mobile wireless terminal, 2 denotes a communication program, and 4 denotes a terminal processing program which is newly developed software and performs a screen display execution and a key input execution function. Reference numeral 3 denotes a communication monitoring program newly developed and inserted between the communication program 2 and the terminal processing program 4. On the other hand, reference numeral 10 denotes a host computer, 11 denotes application software provided in the host computer 10, a terminal processing program for controlling screen display and key input functions, and 12 a communication program. The host computer 10 is equivalent to the host computer shown in FIG.

When the communication monitoring program determines from the received signal level of the beacon signal that the wireless terminal device has gone out of the wireless communication effective range, the communication monitoring program immediately provides guidance indicating that the wireless terminal device is out of the wireless communication effective range. It has a function of displaying it on a display screen or notifying by voice, notification sound, or the like. In addition, the communication monitoring program
A screen for displaying the operation of the key input device of the wireless terminal device and information input from the input device on a screen when detecting at a fixed time interval whether or not the terminal device is within the wireless communication effective range. It has a function of operating independently and in parallel with processing operations such as display.

[0020]

Incidentally, the role of the communication monitoring program in the present invention is summarized and added as follows. (1) The communication monitoring program has a function of checking at regular time intervals whether the terminal device is in the wireless communication effective area. (2) The communication monitoring program operates independently and in parallel with the processing operation (drawing display, key input, etc.) of the terminal device when checking at a certain time interval whether the terminal device is in the wireless communication effective area. be able to. (3) When determining that the terminal device has gone out of the wireless communication effective area, the communication monitoring program executes the guidance display on the screen of the terminal device or notifies the operator of the terminal device with a notification sound.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. 1, 2, and 5 to 9.
FIG. 1 is a block diagram showing a software configuration of a mobile wireless terminal device according to an embodiment of the present invention, FIG. 5 is an explanatory diagram of a communication area detection method of the wireless terminal, and FIG. FIG. 3 is a functional configuration diagram of the body wireless terminal device.

In a warehouse or a distribution center, a mobile terminal, for example, a vehicle such as a forklift is provided with a wireless terminal, and is connected online to a host computer and controlled by a wireless LAN system to carry in and out work within a communication area, and to carry in and out work. And so on. However, even in the same premises where the work is performed, there is a case where communication by the wireless terminal cannot be performed due to some obstacle. It is assumed that the forklift has moved out of the wireless communication effective area.

In FIG. 5, the wireless terminal 1 is mounted on, for example, a forklift (not shown).
What operates the wireless terminal 1 is the host computer 1
Operate the forklift according to the data information from 0. The wireless repeater 15 transmits a beacon signal f ₁ (frequency f ₁ ) at regular time intervals together with a data information signal f ₂ (frequency f ₂ ) exchanged between the host computer 10 and the wireless terminal 1. Wireless terminal 1 on forklift
Receives the beacon signal f ₁ and determines “inside the effective area” if the signal level is equal to or higher than a predetermined reception signal level, and determines “outside the effective area” if equal to or lower. The wireless terminal 1 performs a process of receiving the beacon signal f ₁ and determining whether the area is inside or outside the effective area.
Execute with the communication monitoring program.

The details of the software configuration of the wireless terminal of this embodiment having such a communication monitoring program will be described with reference to FIG. The transmission and reception directions of the communication are indicated by solid arrows. In FIG. 1, reference numeral 2 denotes a communication program, reference numeral 3 denotes a newly developed communication monitoring program, and reference numeral 4 denotes a newly developed terminal processing program, which is basic software for realizing the functions of the mobile radio terminal 1. Reference numeral 5 denotes a keyboard for inputting transmission data and the like to the terminal processing program 4, 6 denotes a bar code, various signals, and 7 to be input to the terminal processing program 4.
Is a screen display unit output from the terminal processing program 4,
Reference numeral 8 denotes output means such as a buzzer, a sound, a speaker, and a printer output from the terminal processing program 4.

Reference numeral 19 denotes a wireless card relating to a wireless device for connecting a wireless line with the host computer 10. 21
Is a data information signal f ₂ from the host computer 10.
Data (memory), 22 is a message communication between the communication program 2 and the communication monitoring program 3, a delivery notification notifying that the received data has been written to the storage unit, and 23 is a terminal processing program 4 side The received data (memory) 24, which is a message notification between the communication monitoring program 3 and the terminal processing program 4, is a delivery notification notifying that the received data has been written to the storage unit.

Reference numeral 25 denotes transmission data (memory) from the mobile radio terminal 1, and reference numeral 26 denotes message communication between the terminal processing program 4 and the communication monitoring program 3, which is a delivery for notifying that the transmission data has been written to the storage unit. Notice, 27
The transmission data for sending data signals f ₂ to the host computer 10 (memory) 28, a communication monitoring program 3, the message communication between the communication program 2, delivery notification that writing the transmit data into the storage unit It is.

With the above configuration, the host computer 1
The wireless terminal 1 receives the data information signal f ₂ from the wireless terminal 1, and a mobile body equipped with the wireless terminal 1, for example, a forklift operator operates the forklift according to information from the host computer 10. . The host computer 10 also converts input information, a bar code, and various signals 6 from the keyboard 5 of the wireless terminal 1 into data signals f _2.
Can be sent to

In FIG. 1, reference numeral 30 denotes a beacon reception signal level record (memory) for physically receiving and determining the level of the beacon signal f ₁ , and 31 denotes a storage for physically communicating with the communication monitoring program 3. 6 shows the pending data (memory) related to the section. Communication monitoring program 3, when the wireless terminal 1 from the received signal level of the beacon signal f ₁ is determined to have moved out to outside the wireless communication enabled area, immediately output shown in broken lines, indicating that the wireless communication enabled area outside It is provided with a notification function so that the guidance is displayed on the screen display unit 7 or is notified from the notification unit 8 by voice, notification sound, or the like.

The communication monitoring program 3 determines whether or not the wireless terminal 1 is in the wireless communication effective area by using a beacon signal f _1.
The function of detecting at a certain time interval from the received signal level and issuing a warning is a key input by the keyboard 5 of the wireless terminal 1, a transmission to the host computer 10, and information input from the keyboard 5 is displayed on the screen display unit 7. And can operate independently and in parallel with the processing operation function.

That is, the software configuration of the wireless terminal device shown in FIG. 1 is a flow indicated by a thick arrow in the functional configuration diagram of FIG. The following basic functions transmitted via the device are realized. Judgment of received signal level of beacon signal, reception of data information signal typified by “screen display data”, transmission of data information signal typified by “key input data”,

Next, the operation (operation) of the wireless terminal having the software configuration shown in FIGS. 1, 2 and 6 will be described with reference to the program processing flow of FIGS. In the following description, () indicates the step number of the flowchart in each figure. 7 is a flowchart illustrating a beacon signal determination processing procedure of the communication monitoring program according to the present embodiment, FIG. 8 is a flowchart illustrating a reception processing procedure,
FIG. 9 is a flowchart illustrating the procedure of the transmission process.

As shown in FIG. 7, the communication monitoring program 3
First determines whether there is data received from the communication program 2 (step 7-1). Received data (memory) 2
1. When it is confirmed that the received data is present in the delivery notification 22, a receiving process described later with reference to FIG. 8 is performed. Further, the communication monitoring program 3 determines the presence or absence of transmission data from the terminal processing program 4 (Step 7-2). When transmission data (memory) 25 and delivery notification 26 confirm that transmission data exists, transmission processing described later with reference to FIG. 9 is performed.

The communication monitoring program 3, then receives the beacon signal f ₁ originating at regular time intervals, and determines the reception level receiving the beacon reception signal level recording (memory) 30 (step 7-3). The previous determination result received at regular time intervals and the present result are compared (step 7-4), and the presence or absence of a change is determined (step 7-5).
When the previous time is within the valid area and the current time is outside the valid area, guidance is displayed. That is, as shown by the broken line in FIG. 1, guidance indicating that the vehicle is outside the wireless communication effective area is displayed on the screen display unit 7, or is notified from the notification unit 8 by voice, notification sound, or the like (step 7-).
7). When the previous time is outside the effective area and the current time is inside the effective area, the guidance display is canceled and the guidance display is not displayed (step 7-6).

Next, the receiving process in the communication monitoring program 3 will be described with reference to the flowchart of FIG. Retrieve data received from communication program 2 (step 8-
1). Retrieve the received data to receive data (memory) 2
3 to the terminal processing program 4 (step 8
-2). The reception processing is completed by notifying the terminal processing program 4 that the data has been transmitted by the delivery notification 24 (step 8-2).

Next, transmission processing in the communication monitoring program 3 will be described with reference to the flowchart of FIG. The transmission data from the terminal processing program 4 is extracted (step 9-1). It is confirmed whether or not the wireless terminal 1 mounted on the moving object is in the wireless communication effective area (step 9-).
2). If it is within the valid area, the transmission data is suspended and stored in the temporary storage file of the suspension data (memory) 31 (step 9-3). If there is any pending data in the effective area (step 9-4), the pending data (memory) 3
All the transmission data held in 1 is transmitted to the communication program 2 (step 9-5).

Next, the transmission data from the terminal processing program 4 is transmitted to the communication program 2 by the transmission data (memory) 27.
(Step 9-6). On the other hand, it is checked whether or not the wireless terminal 1 mounted on the mobile object is within the wireless communication effective area (step 9-2). (Step 9-7).

The delivery notification 2 indicates that the transmission data from the terminal processing program 4 has been normally transmitted to the communication program 2.
By notifying at step 8 (step 9-8), the transmission process ends. As is clear from the above processing procedure, even when the wireless terminal 1 is out of the wireless communication effective area, the communication monitoring program 3 normally performs the processing operation (drawing display, key input, etc.) of the wireless terminal 1. To be able to work,
It operates as a relay process (cushion) between the communication program 2 and the terminal processing program 4.

In particular, as described in the flowchart of FIG. 9, the communication monitoring program 3 executes the following. (1) The wireless terminal 1 exists outside the wireless communication effective area,
In addition, even if there is a request to transmit data information from the wireless terminal 1 to the host computer 10, the communication monitoring program 3
Holds (holds) the data information without sending it to the communication program 2. At this time, normality is notified to the processing operation unit (drawing display, key input, etc.) of the wireless terminal 1.

[0040] (2) Then, from the wireless terminal 1, by pressing the key that has been predetermined, when a request for guidance display released outside the wireless communication enabled area, immediately beacon signal f ₁ of the received signal The level is detected, and the wireless communication effective area is determined. (3) When the wireless terminal 1 returns to the wireless communication effective area without pressing a predetermined key (when the communication monitoring program 3 determines that it is within the wireless communication effective area), it is held. A process for transmitting the (held) data information is executed, and the guidance display outside the wireless communication effective area is canceled.

Next, although not shown, assuming that the mobile radio terminal is mounted on a forklift, an operation procedure and a terminal operation in a forklift operation in a distribution warehouse will be described. Wireless terminal 1 on forklift
As shown in FIG. 5, and exchanging data information signals f ₂ to the host computer 10 (radio repeater 15 included) in a wireless communication, receiving a beacon signal f _1.

For example, in the case of a picking operation, the screen (display) of the wireless terminal 1 on the forklift is used as a "picking operation screen" of the instruction data from the host computer 10 and includes data such as the name of the product to be handled, the quantity, and the storage shelf address. Information is displayed. The driver of the forklift and the operator of the wireless terminal 1 work on the forklift according to the instruction data. When the instructed work is completed, the operator transmits “completion” to the host computer 10 by wireless communication by key input to the wireless terminal 1.

When the wireless terminal 1 on the forklift goes out of the wireless communication effective area during the operation of the forklift, the guidance display "out of area" is displayed on the "picking work screen". At the same time, a notification sound is emitted. At this time, the driver of the forklift and the operator of the wireless terminal 1 can take the following countermeasures according to the situation.

The forklift moves to return to the wireless communication effective area. The guidance display is automatically canceled by returning to the area. Press the guidance display release key and check the area again. The operation according to the instruction data is continued as it is. 、 Response is, for example, the forklift enters the shade of the pillar
This is done when you are out of a very temporary area.

After the key operation is completed, the forklift operation is continued. When the wireless terminal 1 on the forklift is outside the wireless communication effective area and the “completed” of the executed work is transmitted to the host computer 10 by wireless communication by key input, it is outside the area. Communication does not reach to. The transmission data is held in the hold data (memory) 31 of the communication monitoring program 3 as already described inside the wireless terminal 1. Nevertheless, the terminal display shows "Complete" as the communication has been transmitted, and the guidance shows "Out of area" as it is. However, the next key operation of the wireless terminal 1 can operate any key as it is. When the wireless terminal 1 on the forklift enters the wireless communication effective area, the guidance display is automatically canceled, and the held data information (“completed”) is transmitted to the host computer 10.

As described above, even if the mobile radio terminal 1 mounted on the forklift is outside the radio communication effective area, the processing operation of the radio terminal 1 (FIG. Display, key input, etc.) function normally. In the above embodiment, the example of the picking operation of the forklift has been described. However, it is needless to say that the moving body is not limited to the forklift, and the operation can be applied to various operations in distribution.

The wireless terminal of the present invention can be put to practical use by installing software developed by the present invention based on a commercially available personal computer. Therefore, according to the present invention, it is possible to improve the efficiency of, for example, warehouse management and entry / exit work at a distribution center, transport work, and the like with relatively low investment.

[0048]

As described above in detail, according to the present invention, the terminal device can be used in a state where the host computer and the terminal are online by wireless communication and within and outside the effective range of the wireless communication. It is possible to provide a wireless terminal device for a mobile body capable of normally functioning as a key input, a screen display, etc., and a method of operating a mobile body using the same.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a software configuration of a mobile wireless terminal device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a software configuration of a wireless LAN system of a mobile wireless terminal device according to the present invention.

FIG. 3 is an explanatory diagram of a software configuration of a conventional data transmission system.

FIG. 4 is an explanatory diagram of a software configuration of a conventional wireless LAN system.

FIG. 5 is an explanatory diagram of a communication area detection method of a wireless terminal.

FIG. 6 is a functional configuration diagram of the mobile wireless terminal device of FIG. 1;

FIG. 7 is a flowchart illustrating a beacon signal determination processing procedure of a communication monitoring program according to the present embodiment.

FIG. 8 is a flowchart illustrating a procedure of a reception process.

FIG. 9 is a flowchart illustrating a procedure of a transmission process.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Wireless terminal, 2 ... Communication program, 3 ... Communication monitoring program, 4 ... Terminal processing program, 5 ... Keyboard,
7 screen display unit, 10 host computer, 19 wireless card, 21 23 received data (memory), 22,
23, 26, 28 ... delivery notification, 25, 27 ... transmission data (memory) 30 ... beacon reception signal level recording (memory), 31 ... pending data (memory).

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Takeshi Fujisawa 7-18-18 Toyo, Koto-ku, Tokyo Hitachi Transport System Co., Ltd. (56) References JP-A-7-157300 (JP, A) JP-A-8 -119416 (JP, A) JP-A-5-46645 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66F 9/24

Claims (4)

(57) [Claims] 1. A mobile wireless terminal device mounted on a mobile object, connected to a host computer by wireless communication, and managing information by display, online-connected to the host computer so that software of the host computer can be directly executed. The terminal device itself has detection means for detecting in the online connection state whether or not the mobile object or the terminal device is within a range capable of effectively wirelessly communicating with the host computer. In the case of the first state that is deviated, the departure is detected and a display or warning is performed, and in the case of the second state that returns again within the range, the departure is detected and at least the display is automatically performed. A communication monitoring configuration for canceling, the information for the information management can be input and output also in the case of the first state, and in the case of the second state, Serial mobile object wireless terminal device comprising a structure which is adapted as possible the operation of the information management operation in conjunction the communication monitoring online connection status. 2. The detecting means receives a beacon signal,
2. The terminal device according to claim 1, wherein by comparing the beacon signal level with a reference level, the terminal device itself detects whether or not the mobile object or the terminal device is within the wireless communication range. 3. Mobile terminal device for mobile. 3. The apparatus according to claim 1, wherein said detecting means detects at a fixed time interval whether said terminal device itself is within a range in which said mobile unit or said terminal device is capable of wireless communication. A mobile wireless terminal device according to claim 2. 4. A method of operating a mobile object equipped with a wireless terminal device connected to a host computer by wireless communication and performing information management by display, wherein the wireless terminal device is provided to the host computer by software of the host computer. A first step of online connection so that the terminal apparatus can be directly executed, and a beacon signal is received by the wireless terminal apparatus in the online connection state, and the beacon signal level is compared with a reference level. A second step of detecting whether the mobile unit or the terminal device is within a range in which the mobile device or the terminal device can wirelessly communicate with the host computer; and A third step of detecting the out-of-range when it is out of the range and displaying or giving an alarm; A fourth step of, in accordance with the alarm, moving the terminal so that the mobile unit or the terminal device comes within the wireless communication range; and A fifth step of automatically canceling the display at least by detecting the following. In the online connection state again, the wireless terminal device
A sixth step of receiving a beacon signal and comparing the beacon signal level with a reference level to detect whether or not the mobile unit or the terminal device is within a wirelessly communicable range, In the third and fourth steps, the information for information management can be input / output even when the wireless communication operation is interrupted. In the sixth step, the communication monitoring is performed together with the information management operation in the online connection state. A driving method for a moving body, wherein the moving object is operated.