KR102729039B1 - A segmental bridge body for military gap-overcoming bridges capable of measuring the number of vehicle passages and a durability management system for segmental bridge bodies for military gap-overcoming bridges using the same - Google Patents

Abstract

Disclosed are a military bridge segment capable of measuring the number of times a vehicle has passed, which can measure the loads and number of times a variety of passing vehicles have passed by installing only one vehicle detection sensor regardless of the vehicle load and wheelbase of a passing vehicle, and which can check in real time the usable durability of each bridge segment, which is connected in multiple pieces to form a bridge in response to a construction length, and a durability management system of a military bridge segment using the same. The military bridge segment capable of measuring the number of times a vehicle has passed and the durability management system of the military bridge segment using the same enable a manager to check in real time the usable durability of each bridge segment and not use a bridge segment whose usable durability has exceeded, thereby preventing safety accidents, such as collapse accidents, that may occur during vehicle operation through a military gap-overcoming bridge, thereby ensuring the timeliness and convenience of maintenance of the military bridge segment.

Description

{A SEGMENTAL BRIDGE BODY FOR MILITARY GAP-OVERCOMING BRIDGES CAPABLE OF MEASURING THE NUMBER OF VEHICLE PASSAGES AND A DURABILITY MANAGEMENT SYSTEM FOR SEGMENTAL BRIDGE BODIES FOR MILITARY GAP-OVERCOMING BRIDGES USING THE SAME}

The present invention relates to a military bridge segment capable of measuring the number of times a vehicle passes through it, and a durability management system of the military bridge segment using the same. More specifically, the present invention relates to a military bridge segment capable of automatically measuring the number of times a military vehicle passes through it, and a durability management system of the bridge segment capable of checking in real time the durability of the bridge segment in operation in response to various types of passing vehicles.

In general, bridges currently being operated or scheduled to be operated by the military include tactical bridges, assault bridges, supply line bridges, floating bridges, and educational bridges. Such bridges must always maintain durability to ensure operational support during wartime maneuvers and to respond to non-traditional threats such as disasters during peacetime.

The military currently operates and maintains modular bridges that are segmented to allow for a variety of construction lengths, and in order to maintain the durability of the bridges in preparation for wartime situations, it is essential to verify the use of each segmented bridge.

The minimum information required to verify the use of the segmented bridge as described above is the number of passages, passage time, and bridge operation time according to the load of passing vehicles. However, since the bridges currently in operation are managed manually by manpower, it is difficult to manage data on various passing vehicles. Therefore, if a bridge segment with an exceeded usable lifespan is used, there is a problem that a safety accident may occur during the operation of passing vehicles.

Accordingly, a method of acquiring the load of a passing vehicle using a load cell sensor has been recently used, and in the case of the method of acquiring the load of a passing vehicle using the load cell sensor, a load cell sensor is manufactured based on basic information on a single vehicle load (longitudinal wheel load) and wheel tread (lateral distance between wheels on both sides) that has been set in advance, and is installed on the lower part of the bridge structure to acquire data.

However, in the case of the method of acquiring the load of a passing vehicle using the load cell sensor as described above, there is a problem in that in order to acquire information on additional passing vehicles other than a single vehicle set in advance, an additional load cell sensor must be manufactured and installed based on information on the load and wheelbase of the corresponding passing vehicle.

To explain in more detail, vehicles passing through bridges operated by the military have various vehicle weights and wheel treads, and data on all passing vehicles must be acquired in order to maintain and manage the durability of the bridge. Therefore, in order to acquire the load of passing vehicles by applying the load cell sensor as described above, various load cell sensors must be manufactured according to the weight and wheel tread of the passing vehicles and installed on the bottom of the bridge. In addition, in order to attach the load cell sensor, a certain space and a wired connector for connecting the load cell sensor are required on the bottom of the bridge. Therefore, excessive installation costs are required, and the installation work is very difficult and takes a long time. In addition, there is a problem that maintenance is very difficult.

Republic of Korea Patent Publication No. 10-2004-0075658 (August 30, 2004) Republic of Korea Patent Publication No. 10-0591454 (June 12, 2006)

The purpose of the present invention is to provide a military bridge segment capable of measuring the number of vehicle passages by installing only one vehicle detection sensor, capable of measuring the load and number of passages of various passing vehicles, and capable of checking in real time the usable durability of each bridge segment formed by connecting multiple segments corresponding to the construction length to form a bridge, and a durability management system of a military bridge segment using the same.

In order to achieve the above object, the present invention proposes a military bridge segment capable of measuring the number of vehicle passages, in which a plurality of segments are connected along a construction length to form a bridge, and a vehicle detection sensor that emits a charge proportional to the weight of a grounded wheel when a wheel of a passing vehicle is grounded is installed on the upper surface along the width direction.

Here, the vehicle detection sensor may be formed with a length corresponding to half the width of the bridge segment and installed on the upper surface of the bridge segment.

For example, the vehicle detection sensor may be a piezoelectric film sensor.

In addition, the present invention may further include a sensor protection means for protecting the vehicle detection sensor so as to prevent the vehicle detection sensor from being damaged by a vehicle passing through the bridge segment.

For example, the sensor protection means may include a lower protection cover installed on an upper surface of a bridge segment along the width direction of the bridge segment and having a mounting groove formed on the upper surface in which the vehicle detection sensor is mounted, and an upper protection cover attached to an upper surface of the lower protection cover so as to be detachably and replaceably so that the vehicle detection sensor mounted in the mounting groove is not exposed to the outside.

Here, it is preferable that the upper protective cover be made of carbon fiber reinforced plastic.

In addition, in order to achieve the above object, the present invention comprises: a vehicle detection sensor installed on the upper surface of a bridge segment along the width direction of a bridge segment formed by connecting a plurality of bridge segments according to a construction length to form a bridge, which emits an electric charge proportional to the weight of a grounded wheel when a wheel of a passing vehicle is grounded; a passing vehicle information detection unit which receives the electric charge proportional to the weight of the grounded wheel emitted from the vehicle detection sensor and detects the weight, vehicle type, passing time, and bridge segment usage time of a passing vehicle; a passing vehicle information recording unit which receives the number of times a vehicle passes from the vehicle detection sensor and receives passing vehicle information such as the weight, vehicle type, passing time, and bridge segment usage time of a passing vehicle from the passing vehicle information detection unit and records and stores the same for each bridge segment; and a passing vehicle information recording unit which receives the number of times a vehicle passes and the usage time of the bridge segment for each bridge segment from the passing vehicle information recording unit, calculates the accumulated number of times a vehicle passes and the accumulated usage time, and compares the same with preset critical accumulated passing numbers and critical accumulated usage times to determine the durability of the bridge segment. A durability management system for military bridge segments including a bridge segment durability calculation unit is presented.

Here, the vehicle detection sensor may be formed with a length corresponding to half the width of the bridge segment and installed on the upper surface of the bridge segment.

For example, the vehicle detection sensor may be a piezoelectric film sensor.

In addition, the present invention may further include a sensor protection means for protecting the vehicle detection sensor so as to prevent the vehicle detection sensor from being damaged by a vehicle passing through the bridge segment.

For example, the sensor protection means may include a lower protection cover installed on an upper surface of a bridge segment along the width direction of the bridge segment and having a mounting groove formed on the upper surface in which the vehicle detection sensor is mounted, and an upper protection cover attached to an upper surface of the lower protection cover so as to be detachably and replaceably so that the passing vehicle detection sensor mounted in the mounting groove is not exposed to the outside.

Here, it is preferable that the upper protective cover be made of carbon fiber reinforced plastic.

For example, the above-described passing vehicle information detection unit may include a signal conditioning amplifier that receives a charge proportional to the weight of a grounded wheel emitted from the vehicle detection sensor, amplifies the charge, and converts it into a voltage, an A/D converter that filters the voltage transmitted from the signal conditioning amplifier and converts it into a digital signal, and a microcontroller unit that receives the digital signal transmitted from the A/D converter and detects the weight, vehicle type, passing time, and usage time of a bridge segment of a passing vehicle.

Here, the microcontroller unit can detect the maximum peak value and number of digital signals transmitted from the A/D converter, and detect the weight and type of a passing vehicle based on the sum and number of maximum peak values.

In addition, the present invention may further include a display unit that receives a digital signal from the A/D converter and displays it so that the digital signal can be confirmed on site.

In addition, the present invention may further include a communication unit that transmits a digital signal displayed on the display unit to a manager terminal via wired/wireless communication.

In addition, the present invention may further include a digital accelerometer that detects vibrations generated when a vehicle enters an entry bridge segment of a bridge formed by the plurality of bridge segments, determines that a vehicle has entered when the detected vibration is measured to be greater than a set threshold value, operates the passing vehicle information detection unit, and stops the operation of the passing vehicle information detection unit when the recording of the passing vehicle information in the passing vehicle information recording unit is completed.

As described above, the military bridge segment capable of measuring the number of vehicle passages according to one embodiment of the present invention and the military bridge segment durability management system using the same execute real-time management of the operation history of each bridge segment used in a military gap overcoming bridge, thereby allowing the manager to check the operation durability of each bridge segment in real-time.

Therefore, the military bridge segment capable of measuring the number of vehicle passages according to one embodiment of the present invention and the durability management system of the military bridge segment using the same have the effect of ensuring timeliness and convenience in maintenance of the military bridge segment.

In addition, by using a military bridge segment capable of measuring the number of vehicle passages according to an embodiment of the present invention and a durability management system for a military bridge segment using the same, a manager can check and manage the durability of each bridge segment in real time, thereby preventing safety accidents such as collapse accidents that may occur during vehicle operation on a military gap-overcoming bridge.

In addition, according to an embodiment of the present invention, a military bridge segment capable of measuring the number of vehicle passages and a durability management system of a military bridge segment using the same install vehicle detection sensors so as to extend along the width direction of the bridge segment on the upper surface of the bridge segment, thereby eliminating the need to install a number of vehicle detection sensors corresponding to the types of vehicles passing through the bridge segment, and instead installing only one vehicle detection sensor per bridge segment, the system can detect various passing vehicles regardless of the vehicle load and wheelbase of the passing vehicles and measure the load and number of passages.

Accordingly, the present invention has the effect of being able to obtain information on passing vehicles in response to various passing vehicles without investing excessive installation costs.

In addition, since the vehicle detection sensor is installed on the upper surface of the bridge segment rather than the lower portion of the bridge segment, there is no need to secure a separate installation space under the bridge segment, so additional stability measures for the bridge segment are unnecessary, and since the wheels of a passing vehicle are directly contacted by the vehicle detection sensor, there is an effect of significantly improving the accuracy of data, such as information on passing vehicles obtained when a passing vehicle passes.

Other effects of the present invention will be clearly understood and determined by experts or researchers in this technical field through the specific contents described below or during the process of implementing the present invention.

Figures 1 to 3 are drawings for explaining a military bridge segment capable of measuring the number of vehicle passages according to one embodiment of the present invention.
Figure 4 is a cross-sectional view for explaining the sensor protection means.
Figure 5 is a schematic block diagram for explaining a durability management system of a military bridge segment according to one embodiment of the present invention.
Figure 6 is an example diagram for explaining a digital signal according to the type of vehicle detected by the vehicle detection sensor.

The present invention can be modified in various ways and can take various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to specific disclosed forms, but should be understood to include all modifications, equivalents, or substitutes included in the spirit and technical scope of 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 the second component, and similarly, the second component may also be referred to as the first component.

The terminology used in this application is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, it should be understood that the terms "comprises" or "has" and the like are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and will not be interpreted in an idealized or overly formal sense, unless expressly defined otherwise in this application.

Referring to the drawings below, preferred embodiments of the present invention will be described in more detail.

FIGS. 1 to 3 are drawings for explaining a military bridge segment capable of measuring the number of vehicle passages according to one embodiment of the present invention, and FIG. 4 is a cross-sectional view for explaining a sensor protection means.

Referring to FIGS. 1 to 4, a military bridge segment (210) capable of measuring the number of vehicle passages according to one embodiment of the present invention may be connected in multiple pieces according to the construction length to form a bridge (200).

For example, the above segments (210) can be connected in multiple pieces according to the length of the structure as shown in FIG. 1 to form a tactical bridge, can form a supply line bridge as shown in FIG. 2, can form an assault bridge as shown in FIG. 3, and can also form other types of bridges, such as floating bridges and gate bridges.

In addition, the bridge segment (210) has a vehicle detection sensor (110) installed along the width direction on the upper surface, so that when a wheel of a vehicle passing through the bridge segment (210) touches the vehicle detection sensor (110), the vehicle detection sensor (110) releases a charge proportional to the weight of the grounded wheel, thereby enabling the number of times the vehicle passes through the bridge segment (210) to be measured regardless of the load and wheel travel of the vehicle.

To explain in more detail, a military bridge segment (210) capable of measuring the number of vehicle passes according to an embodiment of the present invention has a vehicle detection sensor (110) installed on the upper surface along the width direction, so that the weight and number of passes of various passing vehicles can be measured regardless of the vehicle load (longitudinal wheel load) and wheel tread (lateral distance between wheels on both sides) of the passing vehicle with only one vehicle detection sensor (110). Therefore, not only is there no need to manufacture a vehicle detection sensor (110) tailored to each passing vehicle passing through the bridge segment (210), but also since the vehicle detection sensor (110) is installed on the upper surface of the bridge segment (210), the installation of the vehicle detection sensor (110) is very easy, and there is an advantage in that the accuracy of data acquired when a vehicle passes can be improved.

Here, the vehicle detection sensor (110) is formed with a length corresponding to half the width of the bridge segment and can be installed on one or the other side of the upper surface of the bridge segment.

For example, as the vehicle detection sensor (110), it is preferable to use a piezoelectric film sensor that is installed along the width direction of the bridge segment (210) on the upper surface of the bridge segment (210) and can emit a charge proportional to the weight of the grounded wheel when the wheel of the vehicle is grounded.

In addition, the military bridge segment (210) capable of measuring the number of vehicle passages according to one embodiment of the present invention may further include a sensor protection means (150).

The above sensor protection means (150) prevents the vehicle detection sensor (110) from being damaged by a vehicle passing through the bridge segment (210).

For example, the sensor protection means (150) may include a lower protection cover (151) and an upper protection cover (152) as shown in FIG. 4.

The lower protective cover (151) is installed on the upper surface of the bridge segment (210) along the width direction of the bridge segment (210), and a mounting groove (151a) may be provided in the center of the upper surface to extend long along the width direction of the bridge segment (210) and to accommodate a vehicle detection sensor (110).

For example, the lower protective cover (151) can be made of polyethylene.

The upper protective cover (152) can be detachably and replaceably attached to the upper surface of the lower protective cover (151) so that the vehicle detection sensor (110) mounted in the mounting groove (151a) is not exposed to the outside.

For example, the upper protective cover (152) can be made of carbon fiber reinforced plastic.

Next, a durability management system for a military bridge segment according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6.

FIG. 5 is a schematic block diagram for explaining a durability management system of a military bridge segment according to an embodiment of the present invention, and FIG. 6 is an exemplary diagram for explaining a digital signal according to the type of vehicle detected by a vehicle detection sensor.

Referring to FIGS. 1 to 6, a durability management system (100) for a military bridge segment according to one embodiment of the present invention may include a vehicle detection sensor (110), a passing vehicle information detection means (120), a passing vehicle information recording unit (130), and a bridge segment durability calculation unit (140).

The above vehicle detection sensor (110) may be installed in each bridge segment (210) that forms a bridge (200) by connecting multiple ones according to the construction length.

Here, it is preferable that the vehicle detection sensor (110) be installed on the upper surface of the bridge segment (210) along the width direction of the bridge segment (210).

For example, the vehicle detection sensor (110) may be formed with a length corresponding to half the width of the bridge segment and installed on one or the other side of the upper surface of the bridge segment.

A vehicle detection sensor (110) of this type can measure the number of times a vehicle passes through a bridge segment (210) regardless of the load and wheel tread of the vehicle by emitting a charge proportional to the weight of the grounded wheel when the wheel of the vehicle passes through the bridge segment (210).

For example, as the vehicle detection sensor (110), it is preferable to use a piezoelectric film sensor that is installed along the width direction of the bridge segment (210) on the upper surface of the bridge segment (210) and can emit a charge proportional to the weight of the grounded wheel when the wheel of the vehicle is grounded.

The above-mentioned passing vehicle information detection unit (120) receives a charge proportional to the weight of the grounded wheel emitted from the vehicle detection sensor (110) to detect the weight, vehicle type, passing time, and usage time of the bridge segment (210) of the passing vehicle.

For example, the above-mentioned passing vehicle information detection unit (120) may include a signal conditioning amplifier (121), an A/D converter (122), and a microcontroller unit (123).

The above signal control amplifier (121) is connected to the vehicle detection sensor (110) to receive a charge proportional to the weight of the grounded wheel emitted from the vehicle detection sensor (110), amplify it, and convert it into voltage.

The above A/D converter (122) is connected to the signal conditioning amplifier (121) to filter the voltage transmitted from the signal conditioning amplifier (121) and convert it into a digital signal.

The above microcontroller unit (123) is connected to the A/D converter (122) and receives a digital signal from the A/D converter (122) to detect the weight, vehicle type, passing time, and usage time of the bridge segment (210) of a passing vehicle.

Here, the microcontroller unit (123) can detect the maximum peak value and number of digital signals transmitted from the A/D converter (122) and detect the weight and vehicle type of a passing vehicle based on the sum and number of maximum peak values.

For example, as shown in (a) of FIG. 6, when a tank and tracked vehicle (V1) driven by a crawler passes a vehicle detection sensor (110), one maximum peak value of the digital signal converted by the A/D converter (122) is detected, and as shown in (b) of FIG. 6, when a medium-sized military vehicle (V2) driven by four pairs of wheels arranged in the longitudinal direction passes a vehicle detection sensor (110), four maximum peak values of the digital signal converted by the A/D converter (122) are detected, and as shown in (c) of FIG. 6, when a small-sized military vehicle (V3) driven by two pairs of wheels arranged in the longitudinal direction passes a vehicle detection sensor (110), two maximum peak values of the digital signal converted by the A/D converter (122) can be detected.

Accordingly, the microcontroller unit (123) detects the maximum peak value and number of digital signals transmitted from the A/D converter (122) and compares the sum and number of maximum peak values with a preset military vehicle load classification (MLC), thereby detecting the weight and type of the passing vehicle.

The above-mentioned passing vehicle information recording unit (130) receives the number of times a vehicle has passed from the vehicle detection sensor (110), and receives passing vehicle information such as the weight, type of vehicle, passing time, and bridge segment usage time of the passing vehicle from the passing vehicle information detection means (120), and records and stores the information for each bridge segment (210).

The above bridge segment durability calculation unit (140) can calculate the cumulative number of vehicle passages and cumulative usage time by receiving the number of vehicle passages and the usage time of the bridge segment (210) for each bridge segment (210) from the passing vehicle information recording unit (130).

In addition, the bridge segment durability calculation unit (140) compares the calculated cumulative number of passes and cumulative usage time with the preset critical cumulative number of passes and critical cumulative usage time, respectively, to calculate the durability of the bridge segment as a percentage.

In addition, the durability management system of a military bridge segment according to one embodiment of the present invention may further include a sensor protection means (150).

The above sensor protection means (150) can protect the vehicle detection sensor (110) so as to prevent the vehicle detection sensor (110) from being damaged by a vehicle passing through the bridge segment (210).

For example, the sensor protection means (150) may include a lower protection cover (151) and an upper protection cover (152).

When the lower protective cover (151) is installed on the upper surface of the bridge segment (210) along the width direction of the bridge segment (210), a mounting groove (151a) in which the vehicle detection sensor (110) is mounted can be provided on the upper surface.

The upper protective cover (152) can be detachably and replaceably attached to the upper surface of the lower protective cover (151) so that the vehicle detection sensor (110) mounted in the mounting groove (151a) is not exposed to the outside.

For example, the upper protective cover (152) can be made of carbon fiber reinforced plastic.

In addition, the durability management system (100) of a military bridge segment according to one embodiment of the present invention may further include a display unit (160).

The above display unit (160) is connected to the A/D converter (122) and receives a digital signal from the A/D converter (122) and displays it so that a manager can visually check the digital signal on site.

In addition, the durability management system (100) of a military bridge segment according to one embodiment of the present invention may further include a communication unit (170).

The above communication unit (170) enables the digital signal displayed on the display unit (160) to be transmitted to the administrator terminal (310) via wired/wireless communication.

For example, a wired cable such as a USB cable that can connect the display unit (160) and the administrator terminal (310) with a wire can be used as the communication unit (170).

As another example, the communication unit (170) may use WIFI or Bluetooth to wirelessly connect the display unit (170) and the administrator terminal (310).

Here, a smart phone, tablet PC, laptop, PC, etc. can be used as the above administrator terminal (310).

In addition, the communication unit (170) is connected to the bridge segment durability calculation unit (140) so that the accumulated number of passes, accumulated usage time, and durability of each bridge segment (210) can be received from the durability calculation unit (140) of the segmented bridge and transmitted to the administrator terminal (310) through wired/wireless communication.

In addition, the durability management system (100) of a military bridge segment according to one embodiment of the present invention may further include a digital accelerometer (180).

The above digital accelerometer (180) detects vibrations generated when a vehicle enters an entry bridge segment (220) of a bridge formed by a plurality of bridge segments (210), and when the detected vibration is measured to be greater than a set threshold value, it determines that a vehicle has entered and operates the passing vehicle information detection unit (120), and when the recording of the passing vehicle information in the passing vehicle information recording unit (130) is completed and an information recording completion signal is received from the passing vehicle information recording unit (130), the operation of the passing vehicle information detection unit (120) can be stopped.

Again, referring to FIGS. 1 to 6, the process and effect of managing the durability of a bridge segment (210) through a durability management system (100) using a military bridge segment capable of measuring the number of vehicle passages according to an embodiment of the present invention will be described.

Referring to FIGS. 1 to 6, when a vehicle enters an entry bridge segment (220) of a bridge (200) formed by connecting multiple bridge segments (210) according to a construction length and vibration occurs, the vibration is detected by a digital accelerometer (180), and when the vibration detected by the digital accelerometer (180) is measured to be greater than a set threshold value, the digital accelerometer (180) determines that a vehicle has entered and activates a passing vehicle information detection unit (120).

As described above, when a vehicle passes through a bridge segment (210) with the vehicle information detection unit (120) operating by a digital accelerometer (180), and the wheel of the vehicle is grounded by the vehicle detection sensor (110), the vehicle detection sensor (110) emits a charge proportional to the weight of the grounded wheel and measures the number of times the vehicle passes.

The electric charge proportional to the weight of the grounded wheel emitted from the vehicle detection sensor (110) is transmitted to the signal control amplifier (121) of the passing vehicle information detection unit (120), converted into voltage by the signal control amplifier (121), and transmitted to the A/D converter (122). The A/D converter (122) filters the voltage transmitted from the signal control amplifier (121) and converts it into a digital signal.

Meanwhile, the microcontroller unit (123) receives a digital signal from the A/D converter (122) and detects the maximum peak value and number, and detects not only the weight and type of the passing vehicle based on the sum of the maximum peak values and the number, but also the passing time and the usage time of the bridge segment.

In addition, the digital signal converted by the A/D converter (122) is transmitted to the display unit (160) and displayed so that the manager can visually check the digital signal on site.

In addition, the digital signal displayed on the display unit (160) may be transmitted to the administrator terminal (310) through the communication unit (170) and displayed.

Thereafter, the number of times a vehicle has passed as measured by the vehicle detection sensor (110) and the passing vehicle information, such as the weight, vehicle type, passing time, and bridge segment usage time of the passing vehicle detected by the microcontroller unit (123) of the passing vehicle information detection unit (120), are transmitted to the passing vehicle information recording unit (130) and can be recorded and stored for each bridge segment (210).

As described above, when the recording of the passing vehicle information in the passing vehicle information recording unit (130) is completed, the operation of the passing vehicle information detection unit (120) is stopped by the digital accelerometer (180).

Meanwhile, the bridge segment durability calculation unit (140) receives the number of vehicle passes and the bridge segment usage time for each bridge segment (210) from the passing vehicle information recording unit (130), calculates the cumulative number of vehicle passes and the cumulative usage time, and then compares the results with the preset critical cumulative number of passes and critical cumulative usage time to calculate the durability of the bridge segment (210).

The cumulative number of vehicle passes, cumulative usage time, and durability of each bridge segment calculated by the bridge segment durability calculation unit (140) can be transmitted to the administrator terminal (310) through the communication unit (170).

As described above, according to an embodiment of the present invention, a military bridge segment capable of measuring the number of vehicle passages and a durability management system (100) of a military bridge segment using the same are formed by connecting a plurality of bridge segments (210) according to a construction length, and when a vehicle passes through a bridge (200) and a wheel of the passing vehicle touches a vehicle detection sensor (110) installed on each bridge segment (210), a charge proportional to the weight of the wheel that is touched is released from the vehicle detection sensor (110), and the number of vehicle passages is measured and transmitted to a passing vehicle information detection unit (120).

In addition, the above-described passing vehicle information detection unit (120) detects the vehicle passing time of the bridge segment (210) and the bridge segment usage time when it receives the information from the vehicle detection sensor (110), and also detects the maximum peak value and number of digital signals received from the vehicle detection sensor (110), and detects the weight and type of the passing vehicle based on the sum of the maximum peak values and the number of signals, and transmits the information to the passing vehicle information recording unit (130) so that it can be recorded and stored for each bridge segment (210).

At this time, the passing vehicle information recording unit (130) receives and stores the number of times a vehicle passes from the vehicle detection sensor (110).

Meanwhile, the bridge segment durability calculation unit (140) receives the number of vehicle passes and the bridge segment usage time for each bridge segment (210) from the passing vehicle information recording unit (130), calculates the cumulative number of vehicle passes and the cumulative usage time, and then automatically calculates the durability of the bridge segment (210) by comparing it with the preset critical cumulative number of passes and critical cumulative usage time.

In addition, the passing vehicle information such as the number of times a vehicle has passed, the weight of a passing vehicle, the type of vehicle, the passing time, and the bridge segment usage time of each bridge segment (210) stored in the passing vehicle information recorder (130), and the cumulative number of times a vehicle has passed, the cumulative usage time, and the durability of each bridge segment (210) calculated by the bridge segment durability calculation unit (140) can be transmitted to the administrator terminal (310) through the communication unit (170).

In this way, the military bridge segment capable of measuring the number of vehicle passages according to one embodiment of the present invention and the durability management system (100) of the military bridge segment using the same execute real-time management of the operation history of each bridge segment (210) used in a military gap overcoming bridge, thereby allowing the manager to check the operational durability of each bridge segment (210) in real-time.

Therefore, the military bridge segment capable of measuring the number of vehicle passages according to one embodiment of the present invention and the durability management system (100) of the military bridge segment using the same have the advantage of ensuring timeliness and convenience in the maintenance of the military bridge segment (210).

In addition, when using a military bridge segment capable of measuring the number of vehicle passages according to an embodiment of the present invention and a durability management system (100) for a military bridge segment using the same, the manager can check the durability of each bridge segment (210) in real time and not use a bridge segment (210) whose durability exceeds the durability, thereby preventing safety accidents such as a collapse accident that may occur during vehicle operation through a military gap-overcoming bridge (200).

In addition, according to an embodiment of the present invention, a military bridge segment capable of measuring the number of vehicle passages and a durability management system (100) of a military bridge segment using the same install a vehicle detection sensor (110) on the upper surface of a bridge segment (210) so as to extend along the width direction of the bridge segment (210), thereby eliminating the need to install a number of vehicle detection sensors (110) corresponding to the type of vehicle passing through the bridge segment (210), and instead installing only one vehicle detection sensor (110) per bridge segment, the system can detect various passing vehicles and measure the load and number of passages regardless of the vehicle load and wheelbase of the passing vehicles.

Therefore, the present invention has an advantage in that it can obtain information on passing vehicles in response to various passing vehicles without investing excessive installation costs.

In addition, in the case of the vehicle detection sensor (110), since it is installed on the upper surface of the bridge segment (210) rather than the lower portion of the bridge segment (210), there is no need to secure a separate installation space under the bridge segment (210), so additional stability measures for the bridge segment (210) are unnecessary, and since the wheels of a passing vehicle are directly contacted by the vehicle detection sensor (110), there is an advantage in that the accuracy of data, such as passing vehicle information obtained when a passing vehicle passes, can be significantly improved.

Although the detailed description of the present invention described above has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art or having common knowledge in the art that various modifications and changes can be made to the present invention without departing from the spirit and technical scope of the present invention as set forth in the claims to be described later.

110: Vehicle detection sensor 120: Passing vehicle information detection unit
130: Passing vehicle information record section 140: Bridge segment durability calculation section
150: Sensor protection means 160: Display section
170: Communications Department 180: Digital Accelerometer
200 : Bridge 210 : Bridge segment
220 : Entry bridge segment

Claims (17)

A military bridge segment capable of measuring the number of vehicle passes, in which multiple segments are connected to form a bridge along the length of the construction, and a vehicle detection sensor that emits a charge proportional to the weight of the grounded wheel when the wheel of a passing vehicle is grounded is installed on the upper surface along the width direction.
It further includes a sensor protection means for protecting the vehicle detection sensor so as to prevent the vehicle detection sensor from being damaged by a vehicle passing through the military bridge segment.
The sensor protection means comprises: a lower protective cover installed on the upper surface of the military bridge segment along the width direction of the military bridge segment and having a mounting groove formed on the upper surface in which the vehicle detection sensor is mounted; and an upper protective cover attached to the upper surface of the lower protective cover so as to be detachably and replaceably so that the vehicle detection sensor mounted in the mounting groove is not exposed to the outside; and a military bridge segment capable of measuring the number of vehicle passages. In the first paragraph,
A military bridge segment capable of measuring the number of vehicle passes, characterized in that the vehicle detection sensor is formed with a length corresponding to half the width of the military bridge segment and installed on the upper surface of the military bridge segment. In the first paragraph,
A military bridge segment capable of measuring the number of vehicle passes, characterized in that the vehicle detection sensor is a piezoelectric film sensor. delete delete In the first paragraph,
The above upper protective cover,
A military bridge segment capable of measuring the number of vehicle passes, characterized by being manufactured from carbon fiber reinforced plastic. A vehicle detection sensor installed on the upper surface of a bridge segment along the width direction of a bridge segment formed by connecting multiple pieces according to the length of the hypothesis to emit a charge proportional to the weight of a grounded wheel when a wheel of a passing vehicle touches the ground;
A passing vehicle information detection unit that receives a charge proportional to the weight of a grounded wheel emitted from the above vehicle detection sensor and detects the weight, vehicle type, passing time, and bridge segment usage time of a passing vehicle;
A passing vehicle information recording unit that receives the number of times a vehicle has passed from the vehicle detection sensor and receives passing vehicle information such as the weight, type, passing time, and bridge segment usage time of the passing vehicle from the passing vehicle information detection unit and records and stores the information for each bridge segment; and
A military bridge segment durability management system including a bridge segment durability calculation unit that receives the number of vehicle passages and the bridge segment usage time for each bridge segment from the above-mentioned passing vehicle information recorder, calculates the cumulative number of vehicle passages and the cumulative usage time, and then calculates the durability of the bridge segment by comparing it with the preset critical cumulative number of vehicle passages and the critical cumulative usage time. In Article 7,
A durability management system for a military bridge segment, characterized in that the vehicle detection sensor is formed with a length corresponding to half the width of the bridge segment and installed on the upper surface of the bridge segment. In Article 7,
A durability management system for a military bridge segment, characterized in that the above vehicle detection sensor is a piezoelectric film sensor. In Article 7,
A durability management system for a military bridge segment capable of measuring the number of vehicle passages, the system further including a sensor protection means for protecting the vehicle detection sensor so as to prevent the vehicle detection sensor from being damaged by a vehicle passing through the bridge segment. In Article 10,
The above sensor protection means,
A lower protective cover installed on the upper surface of the bridge segment along the width direction of the bridge segment and having a mounting groove provided on the upper surface in which the vehicle detection sensor is mounted; and
A durability management system for a military bridge segment, comprising an upper protective cover that is detachably and replaceably attached to the upper surface of the lower protective cover so that a passing vehicle detection sensor installed in the above-mentioned fixing groove is not exposed to the outside. In Article 11,
The above upper protective cover,
A durability management system for military bridge segments characterized by being manufactured from carbon fiber reinforced plastic. In Article 7,
The above-mentioned passing vehicle information detection unit,
A signal conditioning amplifier that receives a charge proportional to the weight of a grounded wheel emitted from the vehicle detection sensor, amplifies it, and converts it into voltage;
An A/D converter that filters the voltage transmitted from the signal conditioning amplifier and converts it into a digital signal; and
A durability management system for a military bridge segment, including a microcontroller unit that receives a digital signal transmitted from the above A/D converter and detects the weight of a passing vehicle, vehicle type, passing time, and bridge segment usage time. In Article 13,
The above microcontroller unit,
A durability management system for a military bridge segment, characterized in that it detects the maximum peak value and number of digital signals transmitted from the above A/D converter and detects the weight and type of a passing vehicle by the sum and number of maximum peak values. In Article 13,
A durability management system for a military bridge segment further comprising a display unit that receives a digital signal from the above A/D converter and displays it so that the digital signal can be confirmed on site. In Article 15,
A durability management system for a military bridge segment, further comprising a communication unit that transmits a digital signal displayed on the display unit to a management terminal via wired/wireless communication. In Article 7,
A durability management system for a military bridge segment, further comprising a digital accelerometer for detecting vibrations generated when a vehicle enters an entry bridge segment of a bridge formed by the plurality of bridge segments, determining that a vehicle has entered when the detected vibration is measured to be greater than a set threshold value, and operating the passing vehicle information detection unit, and stopping the operation of the passing vehicle information detection unit when the recording of the passing vehicle information in the passing vehicle information recording unit is completed.