KR20160004911A - Notice system for managing bridge and system for lifting bridge - Google Patents

Abstract

A notification system for bridge management includes; a sensing device which generates a change in the location of an upper bridge structure; an information generation unit which generates location change information regarding the change in the location of the upper bridge structure based on the sensing signal; and a notification control unit including a smartphone which converts the location change information to text according to the control operation of a notification application executed according to an input of the location change information and transmits the text location change information to a mobile terminal of a preset administrator. Accordingly, the automatic notification system for notifying the change of the upper bridge structure suspended for maintenance can prevent the occurrence of a disaster and maintain the safety in periods when the administrator is absent such as nighttime.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bridge system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a notification system, and more particularly, to a notification system and a bridge impression system for bridge management.

Generally, a bridge is a civil engineering structure such as an overpass or a bridge constructed across a river, which is constructed on a road, and the bridge is composed of an upper structure composed of an alternation, a bridge, a girder installed across the upper part of the bridge and an upper plate, The upper structure is supported and fixed as a co-ordinate apparatus installed on the upper side of the pier, and is constructed so that expansion or contraction can be performed according to the expansion and contraction stress acting on the upper structure after the construction.

Such bridges are cracked or damaged in piers, superstructures, and trams due to natural aging or artificial factors after a long time after construction, and the upper structure installed on the piers is pulled up by a hydraulic jack, And repairing and replacing each constituent part of the generated bridge.

That is, in pulling up the upper structure for the maintenance work of the bridge, the hydraulic jack is put in a space between the support surface of the upper part of the bridge and the girder of the upper structure, and then the hydraulic jack is operated as the hydraulic jack, The upper structure is pulled up with the supporting surface of the bridge as a supporting point to repair or replace the bridge, upper structure,

Maintenance and replacement of the bridge structure or parts takes a considerable amount of time, so that the bridge structure is maintained in a state of being pulled up for a period of time required for maintenance and replacement.

If the bridge structure is pulled up, it may be more vulnerable to an external force or the like. Therefore, when a problem occurs in the hydraulic jack and the bridge is inclined or the height is changed, quick action is required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a notification system for bridge management so as to quickly respond to a change in position of a raised bridge deck.

Another object of the present invention is to provide a bridge impression system including the notification system.

According to another aspect of the present invention, there is provided a notification system for managing bridges, comprising: a sensing device for sensing a change in position of a bridge overhead structure to generate a sensing signal; An information generating unit for generating position change information for a position change of the position change information, and a control unit for controlling the notification application to be executed according to the input of the position change information to text the position change information, And an alert control unit including a smart phone for transmitting to a mobile terminal of a set administrator.

According to one embodiment, the sensing device senses the height change of the bridge superstructure.

According to one embodiment, the sensing device is disposed under the bridge superstructure to measure a change in pressure caused by the bridge superstructure or to measure a change in distance from the bridge superstructure.

According to an embodiment, the sensing signal is an analog signal, and the information generating unit generates a digital signal including the position change information.

According to one embodiment, the smartphone is kept in the power saving mode until the position change information is input.

According to one embodiment, there is a plurality of managers, and the smart phone connects voice communication to one of the plurality of managers.

A bridge lifting system according to an embodiment for realizing the object of the present invention described above includes a plurality of leveling devices disposed on a bridge substructure, a plurality of leveling devices disposed respectively on the plurality of leveling devices, A sensing device for sensing a change in the position of the raised bridge structure and generating a sensing signal, and generating position change information on the positional change of the bridge superstructure based on the sensing signal, A smartphone for textualizing the location change information according to control of an information generating unit and a notification application executed according to the input of the location change information, and transmitting the textized location change information to a mobile terminal of a predetermined administrator And a notification control unit.

According to one embodiment, the leveling device includes a first plate, a second plate spaced apart from the first plate, a guide rod passing through the second plate, and a gap between the first plate and the second plate And a gap adjusting member.

According to one embodiment, the bridge lifting system further comprises a height measuring device for measuring the distance over which the bridge superstructure has been pulled by each of the hydraulic jacks, and based on the pulled distance measured by the height measuring device , The hydraulic pressure applied to each of the hydraulic jacks is readjusted.

According to the present invention, it is possible to prevent occurrence of a major accident by providing an automatic notification system for a change in the bridge overhead structure that is pulled up for maintenance or the like, and it is possible to enable safety management even in a nighttime manager member.

In addition, by configuring a notification system using a smartphone, the notification system can be efficiently operated without a separate server or expensive communication equipment.

Also, by using the message service and the voice communication service of the existing communication company, it can be used without limitation in the type of the mobile terminal of the administrator.

1 is a schematic flow diagram of a notification system for bridge management according to an embodiment of the present invention.
2 to 4 are side views showing an impression method of a bridge superstructure according to an embodiment of the present invention.
5 is a block diagram illustrating a bridge impression system used in an impression method according to an embodiment of the present invention.
FIG. 6 is a cross-sectional view of a bridge installed with a sensing unit of a notification system for bridge management according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention. The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

1 is a schematic flow diagram of a notification system for bridge management according to an embodiment of the present invention.

The notification system for bridge management according to an embodiment of the present invention includes a sensing device, a sensing information generator, and an alert controller.

The sensing device senses a change in position of the bridge superstructure and generates a sensing signal. The information generating unit receives the sensing signal and generates position change information. The notification control unit transmits the location change information to a mobile terminal of a predetermined administrator.

The position change may be a height change, or a horizontal position change. The bridge superstructure is supported by a bridge support, and the position of the bridge superstructure can be changed when the bridge support is damaged or settled. Also, in order to replace the bridge support, The hydraulic pressure of the hydraulic jack may be released or the position of the bridge superstructure may be changed by an external force. The sensing device senses such a position change, that is, a height change, or a horizontal position change. In this embodiment, the position change is a height change.

Specifically, the sensing device may sense a change in pressure applied by the bridge superstructure or sense a change in distance from the bridge superstructure. More specifically, the sensing device generates a sensing signal when sensing a pressure change or a distance change that is greater than a predetermined range. The sensing signal is an analog signal. The signal may vary depending on the magnitude of the pressure change, the direction of the pressure change (decrease or increase), the magnitude of the distance change, and the direction of the distance change (decrease or increase).

The sensing information generation unit generates position change information corresponding to the sensing signal. The position change information may be a digital signal. That is, the sensing information generator may be a device for converting the analog signal generated by the sensing device into a digital signal including information on the positional change. The position change information basically includes information on whether or not the position is changed, and may further include information on the size direction (decrease or increase) of the position change.

The position change information is automatically transmitted to the notification control unit. The notification control unit transmits the location change information to a mobile terminal (mobile phone, mobile phone, smart phone) of a predetermined administrator. The manager may be an administrator responsible / managing the maintenance of the bridge. The manager and the mobile terminal may be plural. For example, the first mobile terminal may be a supervisory mobile terminal, the second mobile terminal may be a mobile terminal of a small intestine, and the third mobile terminal may be a mobile terminal of a field officer.

For example, the notification control unit may be a mobile terminal, specifically, a smart phone. The smartphone has a notification program (notification application) installed in advance for the system of the present invention and operates under the control of the notification application. The notification application generates a message in which the location change information is textized by using the message transmission program of the smartphone, and transmits the message to the mobile terminal of the manager. The notification application can generate and send a message using a message generation program (communication company message program) installed in the smartphone. The transmission of the message is performed in the same manner as a general message transmission using a communication network (2G, 3G, LTE, LTE-A, etc.) of each communication company.

According to another embodiment of the present invention, it is also possible to preferentially or selectively transmit information to a nearby manager. That is, the location information of the predetermined mobile terminal is collected and stored in real time using the GPS system or the location tracking function of the mobile communication system, and the distance from the site (bridge construction site) is calculated, It is possible to transmit information.

The transmission of the message may be performed a plurality of times according to a predetermined interval. For example, the message may be set to be sent at 10 minute intervals. The transmission of the message may be stopped after a predetermined number of times, or may be stopped by the administrator resetting.

The location change information may be transmitted from the detection information generation unit by wire or wirelessly. In case of wireless communication, a device such as a short-range wireless communication device (Wi-Fi, Bluetooth) may be used. In case of wired connection, it may be transmitted to the smartphone through a connector wire and a connection terminal of a smart phone. When the position change information (digital signal) is input, the notification application is executed to perform the above-described steps.

The smart phone can simultaneously function as a processing device that textizes position change information and a transmission device that transmits the textized information. Therefore, the bridge detection and management system can be implemented simply and economically without a separate server or communication means.

In addition, the smartphone can connect (call) voice communication to one of the predetermined managers without sending a message. Such a voice communication connection can prevent the delayed response because the transmitted message can not be confirmed. In addition, when the voice communication is connected, the location change information may be displayed on the display window of the mobile terminal. This can be performed using the lettering service of the existing communication company.

The impression of the bridge superstructure may last from a few days to several weeks. Therefore, the smartphone of the notification control unit can be driven in the power saving mode so as to operate for a long time. For example, the power saving mode may be a flight mode that does not maintain a connection with the communication network. The smartphone maintains the power saving mode at a normal time, and when the location change information is received from the detection information generation unit, the smart phone can detect the location change information, connect to the communication network, and perform message generation and transmission. In addition, the application may detect a remaining battery level and transmit information on remaining battery level as a message when the remaining battery level is lower than a predetermined range.

According to the embodiment of the present invention, it is possible to prevent the occurrence of large-scale accident by providing an automatic notification system of changes in the bridge overhead structure raised for maintenance or the like, can do.

In addition, by configuring a notification system using a smartphone, the notification system can be efficiently operated without a separate server or expensive communication equipment.

Also, by using the message service and the voice communication service of the existing communication company, it can be used without limitation in the type of the mobile terminal of the administrator.

The notification system for managing bridges according to an embodiment of the present invention can be provided in combination with the applicant's application No. 10-2014-0047802 entitled "Pull Up Method of Bridge Superstructure ", but the present invention is not limited thereto, It can also be used for the management of bridge superstructure raised by the method.

Hereinafter, a bridge management system combined with an impression method of a bridge overhead structure disclosed in the applicant's application will be described.

2 to 4 are side views showing an impression method of a bridge superstructure according to an embodiment of the present invention.

Referring to FIG. 2, a leveling device 44 and a hydraulic jack 50 are disposed between the bridge substructure 10 and the bridge superstructure 20. As shown in FIG. Preferably, a plurality of leveling devices and hydraulic jacks may be disposed, respectively. For example, the leveling device and the hydraulic jack may be arranged in a direction perpendicular to the throttling axis.

The bridge substructure 10 may be a bridge, and the bridge superstructure 20 may be a girder. A bridge support 30 is disposed between the bridge substructure 10 and the bridge superstructure 20 and the illustrated elevation of the bridge superstructure may be for replacing or repairing the bridge support 30 .

The leveling device 40 includes a first plate 42, a second plate 44 spaced apart from the first plate 42, and a second plate 44 extending through the second plate 44 and coupled with the first plate 42 And a gap adjusting member 48 for adjusting the distance between the guide rod 46 and the first plate 42 and the second plate 44.

The hydraulic jack (50) includes a body portion (52) and a moving portion (54). The moving part 54 is inserted into the body part 52 and can protrude from the body part 52 or move into the body part 52 by the operation of hydraulic pressure.

The gap between the first plate 42 and the second plate 44 can be adjusted by the gap adjusting member 48. For example, the gap adjusting member 48 may be a nut, and the gap adjusting member 48 may be rotated to adjust the gap between the first plate 42 and the second plate 44 Through which the vertical position of the hydraulic jack 50 disposed on the leveling device 44 can be adjusted. A guide groove on which the hydraulic jack 50 can be mounted may be formed on the upper surface of the second plate 44. The hydraulic jack 50 may be partially inserted into the guide groove. Therefore, the horizontal position of the hydraulic jack 50 can be stably guided.

Referring to FIG. 3, the leveling device 40 is adjusted to adjust the vertical position of the hydraulic jack 50. For example, the position of the second plate 44 may be moved upward so that the upper surface of the moving part 54 of the hydraulic jack 50 comes close to or substantially contacts the lower surface of the bridge upper structure 20 .

Referring to FIG. 4, the hydraulic jack 50 is operated to pull up the bridge superstructure 20. Specifically, by moving the moving part 54 of the hydraulic jack 50 upward, the bridge overhead structure 20 can be pulled up. Accordingly, the bridge support 30 and the bridge overhead structure 20 are separated from each other, and the bridge support 30 can be repaired or replaced.

According to the conventional method, a hydraulic jack is used to pull up the bridge superstructure. However, when the height difference between the upper structure and the lower structure is large, it is difficult to adjust the height of the hydraulic jack, It is difficult to ensure the stability of the operation in consideration of the fact that a very large force is applied to the hydraulic jack when the bridge superstructure is pulled up.

However, according to the present invention, by using the leveling device, it is possible to stably guide the position of the hydraulic jack, and by primarily adjusting the vertical position of the hydraulic jack, the impression of the bridge superstructure can be performed stably and precisely have.

5 is a block diagram illustrating a bridge impression system used in an impression method according to an embodiment of the present invention.

Referring to Fig. 5, in the impression method of the present invention, a plurality of hydraulic jacks 50 are disposed. In order to stably pull up the bridge superstructure, it is preferable to control a plurality of hydraulic jacks 50 at the same time. The plurality of hydraulic jacks (50) are connected to an automatic hydraulic pressure distributor (60). The automatic hydraulic pressure distributor (60) distributes the hydraulic pressure supplied from a hydraulic pump (not shown) to each hydraulic jack (50). For example, the same hydraulic pressure may be applied to the plurality of hydraulic jacks 50. Since an automatic hydraulic pressure distributor having such a function is conventionally known, a detailed description thereof will be omitted.

The hydraulic jack (50) is engaged with a height measuring device (80). The height measuring device 80 measures a distance at which the bridge superstructure is physically pulled, and transmits the measured value to the controller 70 (wired or wireless). Even if the same hydraulic pressure is applied to the hydraulic jack 50, the same hydraulic pressure may not be actually applied, or the same amount of hydraulic pressure may be applied.

Next, the measured pull-up distances are compared and the hydraulic pressure of the hydraulic jack 50 is adjusted. For example, when the pull-up amount of the first hydraulic jack is larger than the pull-up amount of the second hydraulic jack, the hydraulic pressure of the first hydraulic jack is decreased or the hydraulic pressure of the second hydraulic jack is increased.

According to this, the distance by which the bridge superstructure is actually pulled up is measured through the height measuring device 80, the measured values are compared with each other, and the pull-up amount is adjusted so that the simultaneous impression using a plurality of hydraulic jacks is stable It can be performed finely.

FIG. 6 is a cross-sectional view of a bridge installed with a sensing unit of a notification system for bridge management according to an embodiment of the present invention.

Referring to FIG. 6, a sensing device 90 is disposed between the bridge substructure 10 and the bridge overhead structure 20. The bridge superstructure 20 must remain stable until the leveling device 40 and the hydraulic jack 50 are removed after the maintenance of the bridge has been completed and the hydraulic jack 50 has been removed. The bridge superstructure 20 may be inclined or lowered in height due to malfunction of the bridge supporter 50 or the like.

The sensing device 90 senses a change in the position of the bridge superstructure 20. For example, the sensing device 90 may be a pressure sensing sensor disposed to contact the lower surface of the bridge superstructure 20 and sensing a pressure change by the bridge superstructure 20, And may be a magnet sensor that is disposed apart from the bridge superstructure 20 to measure the distance from the bridge superstructure 20. [

The sensing device 90 generates a sensing signal when sensing a pressure change or a distance change that is greater than a predetermined range. The sensing signal is an analog signal. The signal may vary depending on the magnitude of the pressure change, the direction of the pressure change (decrease or increase), the magnitude of the distance change, and the direction of the distance change (decrease or increase).

A plurality of leveling devices 44 and hydraulic jacks 50 may be disposed, and a plurality of sensing devices 90 may be disposed correspondingly.

The detection information generation unit receives the detection signal and generates position change information. The location change information is transmitted to the notification control unit. The notification control unit generates a message including the textualized location change information based on the location change information, and transmits the message to the mobile terminal of a predetermined administrator, do. The manager can know whether the bridge overhead structure is changed in position through the mobile terminal, and accordingly, it is possible to take quick action and cope with it, thereby preventing a large accident.

The sensing information generating unit converts an analog signal into a digital signal. The sensing information generation unit may be connected to a plurality of sensing devices to generate corresponding position change information.

The notification control unit includes a smart phone for performing a function.

The sensing information generator and the smartphone may be housed in the same case or each separate case, and may be disposed in the vicinity of the sensing device, for example, at the top of the bridge.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. You will understand.

The present invention can be used for the management of bridge structures during the construction, repair, etc. of bridge structures.

Claims (9)

A sensing device for sensing a change in position of the bridge superstructure pulled by the leveling device and the hydraulic jack to generate a sensing signal;
An information generating unit for generating position change information on a positional change of the bridge superstructure based on the sensing signal; And
And a smartphone for textualizing the location change information under control of a notification application executed according to the input of the location change information and transmitting the textized location change information to a mobile terminal of a predetermined administrator, / RTI >
The sensing device is disposed below the bridge superstructure to measure a change in pressure due to the bridge superstructure or to measure a change in distance from the bridge superstructure,
Wherein the position change information includes information on a magnitude of a position change of the bridge superstructure,
Wherein the notification controller collects and stores the location information of the mobile terminal in real time and calculates the distance to the notification controller and notifies the terminal located within a specific distance to the location Change information,
The leveling device includes a first plate, a second plate spaced apart from the first plate, a guide rod passing through the second plate, and a nut coupled to the guide rod, Wherein the position of the hydraulic jack is adjustable by adjusting the distance between the first plate and the second plate by rotation of the nut. The system according to claim 1, wherein the sensing signal is an analog signal, and the information generating unit generates a digital signal including the position change information. The system of claim 1, wherein the smartphone is maintained in a power saving mode until the position change information is input. The system of claim 1, wherein the smartphone connects voice communication to one of the plurality of mobile terminals. A plurality of leveling devices disposed over the bridge infrastructure;
A plurality of hydraulic jacks respectively disposed on the plurality of leveling devices, for simultaneously lifting the bridge superstructure and independently controllable;
A sensing device for sensing a change in the position of the lifted bridge superstructure and generating a sensing signal;
An information generating unit for generating position change information on a positional change of the bridge superstructure based on the sensing signal; And
And a smartphone for textualizing the location change information under control of a notification application executed according to the input of the location change information and transmitting the textized location change information to a mobile terminal of a predetermined administrator, / RTI >
The sensing device is disposed below the bridge superstructure to measure a change in pressure due to the bridge superstructure or to measure a change in distance from the bridge superstructure,
Wherein the position change information includes information on a magnitude of a position change of the bridge superstructure,
Wherein the notification controller collects and stores the location information of the mobile terminal in real time and calculates the distance to the notification controller and notifies the terminal located within a specific distance to the location Change information,
Wherein the plurality of leveling devices each include a first plate, a second plate spaced apart from the first plate, a guide rod passing through the second plate, and a nut coupled to the guide rod, Each of which is disposed on a second plate of the leveling device and adjusts the distance between the first plate and the second plate by rotation of the nut so that the position of the hydraulic jack is adjustable, . The apparatus according to claim 5, further comprising a height measuring device for measuring a distance at which the bridge superstructure is pulled up by each of the hydraulic jacks,
And the hydraulic pressure applied to each of the hydraulic jacks is readjusted based on the pulled distance measured by the height measuring device. The bridge impression system of claim 5, wherein the sensing signal is an analog signal, and the information generating unit generates a digital signal including the position change information. The bridge impression system of claim 5, wherein the smartphone is kept in a power saving mode until the position change information is input. 6. The bridge impression system of claim 5, wherein the smartphone connects voice communication to one of the plurality of mobile terminals.

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