JP2013241105A - Security system of agricultural machinery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To raise a security level while suppressing rise of a cost.SOLUTION: A tractor includes: a key switch 13 that permits use of the tractor to a user who has a prescribed key 12; a control part 11 to perform a prescribed control; and a setting operation device 21 to perform setting operation related to the prescribed control. A second security function comprises by providing in the control part 11: a security release information input means to make the user input a prescribed security code by using a setting operation device 21 at the start of use of the tractor; and a use restriction means that limits the use of the tractor by changing temporarily the control content of at least either one of engine control, travel control, working machine control, and report control when the input security code does not agree to the registration information that is registered beforehand. In addition, a use restriction selecting means to select the use restriction that the use restriction means does from the plurality kinds of use restrictions is installed.

Description

  The present invention relates to a security system for agricultural machines such as tractors.

  An agricultural machine such as a tractor is provided with a security device for the purpose of preventing theft of the machine. As a security device for an agricultural machine, a device that allows a user who has a predetermined key to use the agricultural machine (for example, start an engine) or get on the agricultural machine (for example, to open / close a cabin door). Is.

JP 2010-173384 A JP 2008-105527 A JP-A-9-50584 WO2006 / 038290 JP 2007-269204 A

  However, the security device for agricultural machines has a problem that the security level is low because the number of types of keys in one model is limited to several in order to reduce costs. On the other hand, a security device (for example, see Patent Documents 1 to 5) capable of realizing higher security than that of an agricultural machine is mounted on a construction machine or an automobile, but such a security device is expensive. It was difficult to apply to agricultural machinery.

The present invention has been created with the object of solving these problems in view of the above-described circumstances, and is intended for use of an agricultural machine and / or an agricultural machine for a user who possesses a predetermined key. In an agricultural machine comprising a security device that permits boarding, a control unit that performs a predetermined control, and a setting operation device that performs a setting operation related to the predetermined control, in the control unit, when starting to use the agricultural machine, Security release information input means for allowing the user to input predetermined security release information using the setting operation device, and when the input security release information does not match the pre-registered registration information, engine control, travel control, work equipment Use restriction means for restricting the use of agricultural machinery by temporarily changing the control content of at least one of the control and the information control. Configure security functional, further characterized in that a use limitation in which the use restriction means performs, provided the use restriction selection means for selecting from the plurality kinds of use restriction.
Further, the use restriction selecting means can select a combination of a plurality of use restrictions from a plurality of kinds of use restrictions.

According to the invention of claim 1, since the second security function is configured in addition to the existing security device, the security level of the agricultural machine can be increased. In addition, since the second security function is configured using an existing control unit or setting operation device, an increase in cost can be suppressed. In addition, the usage restrictions that are applied when the entered security cancellation information does not match the pre-registered registration information can be selected from a plurality of types of usage restrictions. Limits can be set.
Further, according to the invention of claim 2, since a combination of a plurality of usage restrictions can be selected from a plurality of types of usage restrictions, it is possible to diversify the usage restrictions and realize high security.

It is a side view of a tractor. It is a front view which shows the meter panel periphery of a tractor. It is a block diagram which shows the control structure of a tractor. (A)-(E) are explanatory drawings which show a security check screen. (A)-(E) is explanatory drawing which shows a security setting screen (Effective / invalid setting of a security function, operation | movement limitation setting, alerting | reporting setting). (A)-(D) is explanatory drawing which shows a security setting screen (security code change setting). It is a flowchart which shows the main routine of a control part. It is a flowchart which shows the control procedure of a security check. It is a flowchart which shows the control procedure of a security setting. It is a flowchart which shows the control procedure of various control. It is a flowchart which shows the control procedure of engine control. It is a flowchart which shows the control procedure of alerting | reporting control.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a traveling machine body of a tractor. The traveling machine body 1 is connected to an engine mounting part 2 on which an engine (not shown) is mounted, a transmission part 3 for shifting engine power, and a work machine 4. A work unit connecting unit 5, a driver's seat 6 and a control unit 7 on which various operation tools are arranged, a traveling unit 10 including front wheels 8 and rear wheels 9, a control unit 11 for performing various controls, and the like. Yes.

  In addition to the engine, the engine mounting portion 2 is provided with a radiator, a starter, and the like. When the user inserts a predetermined key 12 (see FIG. 2) into the key switch 13 (security device) of the control unit 7 and performs a predetermined engine start operation, the starter starts the engine. As a result, engine power is supplied to the work machine 4 and the traveling unit 10 via the transmission unit 3, and agricultural work by the tractor becomes possible. Note that the security device is not limited to the key switch 13 as long as it allows a user having the predetermined key 12 to use the tractor or get on the tractor. For example, in the case of a tractor having a cabin, a locking device provided on a door for getting on and off the cabin corresponds to a security device.

  The transmission unit 3 is configured to change the power input from the engine and supply it to the work machine 4 and the traveling unit 10. For example, the working power transmission path is provided with a PTO clutch mechanism, a PTO transmission mechanism, and the like, and the traveling power transmission path is provided with a traveling clutch mechanism, a main transmission mechanism, a subtransmission mechanism, a forward / reverse switching mechanism, and the like. .

  The work machine connection unit 5 includes a lift link mechanism 14 for connecting the work machine 4 to the rear part of the traveling machine body 1 so as to be movable up and down, a lift arm 16 for holding the lift link mechanism 14 via a pair of left and right lift rods 15, The lift arm 16 includes a lift cylinder 17 that swings up and down with hydraulic power, a lift rod cylinder 18 that is interposed on either the left or right lift rod 15, and the like. Accordingly, the work implement 4 can be raised and lowered, or the work implement 4 can be tilted to the left and right according to the expansion and contraction of the lift rod cylinder 18.

  In addition to the driver's seat 6 and various operating tools, the control unit 7 includes a meter panel 19 that displays various states of the traveling machine body 1 and the work machine 4. As shown in FIG. 2, the meter panel 19 of the present embodiment incorporates a setting operation device 21 in addition to an engine tachometer 20 that displays the engine speed and various monitor lamps. The setting operation device 21 includes a liquid crystal panel 22, a plurality of operation switches 23 to 26, and a setting control unit 27, and performs engine control, travel control, work implement control, and notification control performed by the control unit 11. It is possible to perform setting operations related to control.

  For example, after the menu switch 23 is pressed to display the setting menu on the liquid crystal panel 22, the setting item is selected by pressing the upper switch 25 and the lower switch 26, and the setting item is selected by pressing the decision switch 24. By displaying the setting operation screen, it becomes possible to perform setting operations related to various controls. The setting items for engine control include idling speed setting, maximum output setting, etc., and the setting items for traveling control include minimum speed setting, maximum speed setting, etc. The work equipment lifting speed setting, work equipment rise limit setting, automatic tilling depth control ON / OFF setting, tilling depth automatic control tilling depth setting, horizontal automatic control ON / OFF setting, horizontal automatic control angle setting, etc. The notification control setting items include various notification control ON / OFF settings.

  The control unit 11 is configured using a microcomputer (including a CPU, ROM, RAM, I / O, and the like). As shown in FIG. 3, a key switch 13 or the like is provided on the input side of the control unit 11. While operating tools and sensors such as a vehicle speed sensor, a lift arm sensor, a lift rod sensor, a tilling depth sensor, and a tilt sensor are connected, an engine such as a starter, a fuel pump, and a governor is connected to the output side of the control unit 11. System actuators, travel system actuators such as transmission mechanisms, brake mechanisms, lift cylinders 17, lift rod cylinders 18, work machine system actuators such as PTO transmission mechanisms, PTO clutch mechanisms, buzzers, horns, headlamps, direction indications An alarm system, a working light, and other notification system operating devices are connected. The control unit 11 is communicably connected to the setting operation device 21 described above, and an EEPROM or the like as a storage unit 28 (setting content storage unit) for storing the setting content set by the setting operation device 21. A non-volatile memory is provided.

  The tractor according to the embodiment of the present invention is configured with the second security function using the existing control unit 11 and the setting operation device 21. Hereinafter, the second security function will be described with reference to FIGS. Note that various means in the following description are functional configurations realized by cooperation of hardware and software configuring the control unit 11.

  In the tractor according to the embodiment of the present invention, at the start of use of the tractor, security release information input means for allowing the user to input a predetermined security code (security release information) using the setting operation device 21, and the input security code Use restriction that restricts the use of a tractor by temporarily changing the control content of at least one of engine control, traveling control, work implement control, and notification control when does not match pre-registered registration information The second security function is configured by adding the means to the control unit 11.

  For example, when the key switch 13 is turned on, a screen requesting input of a security code is displayed on the liquid crystal panel 22 of the setting operation device 21 as shown in FIG. In the example shown in FIG. 4A, the security code is a four-digit alphanumeric character, the alphanumeric character is selected by pressing the upper switch 25 and the lower switch 26, and the selected alphanumeric character is pressed by the pressing switch 23. determine.

  When the security code is input, it is determined whether or not the input security code matches registration information registered in advance. If it is determined that they match, a message indicating that the security codes match is displayed on the liquid crystal panel 22, as shown in FIG. 4B, and various controls are activated in a normal state.

  On the other hand, if the input security code does not match the pre-registered registration information, a message indicating that the security code does not match is displayed on the liquid crystal panel 22 as shown in FIGS. After that, it requests to re-enter the security code. Here, when the correct security code is input, the display of FIG. 4B is performed and the control proceeds to the normal control state. However, when the wrong security code is input again, (E ) After displaying an error message such as “Please consult your dealer”, use restriction as described above.

  According to such a second security function, since it can be configured using the existing control unit 11 and setting operation device 21, it is possible to improve the security level of the tractor while suppressing an increase in cost.

  In addition, the control unit 11 according to the embodiment of the present invention is provided with second security switching means for selectively switching validity / invalidity of the second security function. For example, in the example shown in FIG. 5A, a setting screen for switching the validity / invalidity of the second security function is displayed on the liquid crystal panel 22 of the setting operation device 21, and the validity / invalidity of the upper switch 25 and the lower The selection is performed by pressing the switch 26, and the selection is confirmed by pressing the decision switch 23.

  In this way, since it is possible to selectively switch the validity / invalidity of the second security function, it is possible to select a conventional usage method in which the second security function is invalidated.

  The second security switching means allows the user to input a predetermined security code using the setting operation device 21, and when the input security code matches the registered information registered in advance, the second security function is enabled / disabled. It is preferable to allow invalid switching.

  In this case, when the second security function is switched between valid / invalid, the security code is requested to be input, so that it is possible to prevent the second security function from being switched between valid / invalid.

  Moreover, the control part 11 which concerns on embodiment of this invention is provided with the use restriction | limiting selection means which selects the use restriction which a use restriction means performs from a plurality of types of use restrictions. For example, in the example shown in FIG. 5B, a plurality of types of usage restrictions related to engine control are displayed on the liquid crystal panel 22 of the setting operation device 21, and the usage restrictions to be applied are indicated by the upper switch 25 and the lower switch 26. A selection is made by a pressing operation, and the selection is confirmed by a pressing operation of the decision switch 23. Here, as a plurality of types of use restrictions related to engine control, “stop” for restricting engine start, “idling” for restricting engine speed to low speed, and the like are exemplified.

  Further, in the example shown in FIG. 5C, a plurality of types of usage restrictions related to travel control are displayed on the liquid crystal panel 22 of the setting operation device 21, and the usage restrictions to be applied are indicated by the upper switch 25 and the lower switch 26. A selection is made by a pressing operation, and the selection is confirmed by a pressing operation of the decision switch 23. Here, examples of the plurality of types of use restrictions related to the travel control include “stop” for restricting airframe travel and “minimum speed” for restricting the travel speed to the minimum speed.

  In the example shown in FIG. 5D, a plurality of types of usage restrictions related to work implement control are displayed on the liquid crystal panel 22 of the setting operation device 21, and the usage restrictions to be applied are indicated by the upper switch 25 and the lower switch 26. The selection is made by pressing the button, and the selection is confirmed by pressing the decision switch 23. Here, examples of the plurality of types of use restrictions related to work implement control include “lift arm stop” for restricting the lift arm operation, “PTO stop” for restricting the entry of the PTO clutch mechanism, and the like.

  In the example shown in (E) of FIG. 5, a plurality of types of usage restrictions related to notification control are displayed on the liquid crystal panel 22 of the setting operation device 21, and the usage restrictions to be applied are indicated by the upper switch 25 and the lower switch 26. A selection is made by a pressing operation, and the selection is confirmed by a pressing operation of the decision switch 23. Here, as a plurality of types of usage restrictions related to the notification control, “buzzer” that generates a buzzer sound, “light” that lights and blinks lights such as a headlamp, a direction indicator, and a work lamp are exemplified. .

  In this way, it is possible to select a usage restriction that is performed when the input security code does not match the pre-registered registration information from a plurality of types of usage restrictions. Use restrictions can be set.

  In addition, the use restriction selection unit of the present embodiment can select a combination of a plurality of use restrictions from a plurality of types of use restrictions. In this way, it is possible to realize high security by diversifying usage restrictions.

  In the present embodiment, the security code can be updated in order to maintain the security level of the second security function. For example, as shown in FIG. 6A, when the security code change screen is displayed on the liquid crystal panel 22 of the setting operation device 21 and “Yes” is selected here, the screen shown in FIG. As shown in FIG. 6C, if the correct security code is input, the input of a new security code is requested. When a new security code is input, the current security code stored in the storage unit 28 is rewritten with a new security code, and a message indicating that the security code has been changed as shown in FIG. Is displayed on the liquid crystal panel 22.

  Moreover, the control part 11 which concerns on embodiment of this invention stores the setting content which memorize | stores the setting content which concerns on at least any one control among engine control, driving | running | working control, work implement control, alerting | reporting control for every some user. Storage means, user registration means for storing different registration information for each of a plurality of users, and specifying a user based on the inputted security release information, and using the specified setting contents of the user At least one of engine control, travel control, work implement control, and notification control is performed. In this way, it is possible to eliminate the trouble of re-setting every time the user changes.

  Next, a control procedure executed by the control unit 11 will be described with reference to FIGS. However, in the storage unit 28 of the control unit 11, the security code set for each of the plurality of users and the setting information (setting contents) of various controls set for each of the plurality of users are associated in advance. It shall be remembered.

  As shown in FIG. 7, when the control unit 11 is activated in response to the ON operation of the key switch 13, after executing predetermined initial setting (S 11) and security check (S 12), the security setting (S 13) and various controls are performed. (S14) is repeatedly executed.

  As shown in FIG. 8, in the security check, first, it is determined whether or not the security function flag is valid (S21). If this determination is NO, the security status flag is set to “normal” and the process returns to the upper routine (S22). On the other hand, when it is determined that the security function flag is valid, the setting operation device 21 is used to request input of a security code (S23: security release information input means). If a security code is input, it is determined whether or not the input security code matches a pre-registered security code (S24). If the determination result is NO, "abnormal" is set in the security status flag. The process returns to the upper routine (S25). On the other hand, when it is determined that the input security code matches the security code registered in advance, the user is specified based on the input security code and the setting information of the specified user is read (S26: Use) After that, the security status flag is set to “normal” and the process returns to the upper routine (S22).

  As shown in FIG. 9, in the security setting, it is first determined whether or not the security setting is to be made (S31). If this determination result is NO, the process immediately returns to the upper routine. On the other hand, if the determination result is YES, the setting operation device 21 is used to request input of a security code (S32), and it is determined whether or not the input security code matches a pre-registered security code. (S33). If the determination result is NO, the process immediately returns to the upper routine, but if the determination result is YES, the setting screen for switching the validity / invalidity of the second security function on the liquid crystal panel 22 of the setting operation device 21 (FIG. 5). (A)) is displayed, and switching of validity / invalidity of the second security function is permitted (S34: second security switching means).

  Next, on the liquid crystal panel 22 of the setting operation device 21, the setting screens (B) to (D) in FIG. 5 for use restrictions relating to engine control, travel control, and work machine control are displayed, and engine control, travel control is performed. In addition, the use restriction setting change relating to the work machine control is permitted (S35: use restriction selection means).

  Next, a use restriction setting screen ((E) in FIG. 5) related to notification control is displayed on the liquid crystal panel 22 of the setting operation device 21, and a setting change of use restriction related to notification control is permitted (S36: use). Restriction selection means).

  Next, the security code registration change screen ((A) to (D) in FIG. 6) is displayed on the liquid crystal panel 22 of the setting operation device 21, and the security code registration change is permitted (S37).

  As shown in FIG. 10, in various controls, engine control (S41), travel control (S42), work implement control (S43), and notification control (S44) are sequentially executed. For example, in the engine control, as shown in FIG. 11, it is determined whether or not the security state flag is normal (S51). If the determination result is YES, the normal operation is performed using the normal setting contents. (S52) If the determination result is NO, the normal setting content is temporarily changed to restrict use (applying the use restriction selected by the user) (S53: use restriction means). In the notification control, it is determined whether or not the security state flag is abnormal (S61). If the determination result is YES, the abnormality notification is performed by the notification method selected by the user (S62). In addition, since the content of driving | running | working control and work machine control is the same as the content of engine control, illustration and description of a flowchart are abbreviate | omitted.

  According to the present embodiment configured as described, the key switch 13 that permits the use of the tractor to the user who possesses the predetermined key 12, the control unit 11 that performs the predetermined control, and the predetermined control In the tractor including the setting operation device 21 that performs the setting operation according to the security release information input unit, the control unit 11 causes the user to input a predetermined security code using the setting operation device 21 when starting use of the tractor. When the input security code does not match the registered information registered in advance, the control content of at least one of engine control, travel control, work implement control, and notification control is temporarily changed to change the tractor. And the second security function is configured by restricting the use of the tractor, while suppressing an increase in cost. It is possible to increase the Interview security level.

  In addition, the usage restrictions that are applied when the entered security cancellation information does not match the registered information registered in advance can be selected from among multiple types of usage restrictions. Limits can be set.

  Moreover, since a combination of a plurality of usage restrictions can be selected from a plurality of types of usage restrictions, it is possible to diversify the usage restrictions and realize high security.

  Of course, the present invention is not limited to the above-described embodiment. For example, in the above-described embodiment, the present invention is applied to a tractor. However, the present invention is not limited to an agricultural machine other than a tractor (for example, It can also be applied to combine, rice transplanter, etc.).

  Moreover, although the gist of the present invention is to configure the second security function in the agricultural machine, third and fourth security functions may be further added. In this case, it is preferable to use existing parts and devices in order to suppress an increase in cost. For example, parts / devices that interfere with the use of agricultural machinery (for example, the memory of the control unit) are configured to be detachable so that the components / devices can be attached only when the agricultural machinery is used, or portable devices with a high penetration rate. Various security functions such as an inexpensive communication device (infrared communication module) that communicates with a mobile device such as a telephone can be added and a security code can be automatically transmitted to and received from the mobile device.

DESCRIPTION OF SYMBOLS 1 Traveling machine body 11 Control part 12 Key 13 Key switch 21 Setting operation apparatus 28 Memory | storage part

Claims (2)

A security device that permits a user having a predetermined key to use and / or board an agricultural machine;
A control unit for performing predetermined control;
In an agricultural machine comprising a setting operation device that performs a setting operation according to a predetermined control,
In the control unit,
Security release information input means for allowing a user to input predetermined security release information using a setting operation device when starting use of an agricultural machine;
When the input security release information does not match the pre-registered registration information, the agricultural machine can change the control content of at least one of engine control, travel control, work implement control, and notification control temporarily A use restriction means for restricting the use of the second security function,
Furthermore, a security system for an agricultural machine, characterized in that use restriction selecting means for selecting a use restriction performed by the use restriction means from a plurality of types of use restrictions is provided.   The security system for agricultural machines according to claim 1, wherein the use restriction selecting means is capable of selecting a combination of a plurality of use restrictions from a plurality of kinds of use restrictions.

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