A foldable quad-chord truss which can be connected end-to-end with like trusses. Each pair of chords are rigidly attached, and connector members intermediate the ends are swivelly attached to the chord pairs to effect the folding into a compact shape for transport and storage. The connector members are adapted for attachment to connector members of beams which may extend perpendicular to a parallel pair of the trusses and attached thereto. The laid trusses and beams is overlaid with sheets of corrugated sheet metal which overlap each other along their adjacent edges. While standing on a sheet of laid sheet metal adjacent ends of an already laid pair of trusses, another truss can be held adjacent the edge of the sheet metal for attaching an end of the other truss along only one side so that it can then be swung outwardly into a position wherein the other end of the other truss can also be attached to rigidly connect the trusses end-to-end.

A cable stay transport vehicle and inspection system having an upper frame coupled to a spaced apart lower frame. The transport vehicle is configured to be secured around a cable stay. The transport vehicle includes left upper and lower sets of wheels secured between left side upper and lower frames, and right upper and lower sets of wheels secured between right side upper and lower frames. In addition, a left steering device is coupled between the left upper and lower sets of wheels and includes a left steering gear, and a right steering device coupled to the right upper and lower sets of wheels and comprising a right steering gear. Left and right driving gears are coupled to the left and right steering gears, respectively, and are configured to engage the respective steering gear to turn the transport vehicle when activated.

A platform and a kit therefor. The platform and the kit comprises quad-chord trusses attachable end-to-end and having connector members intermediate thereof, and further comprising beams attachable at their ends to the connector members so that a beam attaches two parallel trusses. A truss comprises first and second pairs of chords which are foldable for storage and transport and unfoldable to use for erection of the platform. A track lies between the upper chords to allow movement of bolts along the track into position to attach for insertion into decking apertures for attachment of the decking. The kit also includes a sturdy and reliable and easy to use tie-up mechanism and railing along the platform perimeter which is quickly and easily attachable and reliable.

A work vehicle (1) including a suspended platform includes a work cage (10) to carry an operator, an arm mechanism (60) having a distal end, the distal end movable to an intended position by at least one of a rotating mechanism (30), an extension mechanism (40), or a derricking mechanism (50) installed on a vehicle body (20). The suspended platform (100) includes a support post (70) located at the distal end of the arm mechanism (60), a suspension frame (80), from which the work cage (10) is suspended, mounted on an upper end of the support post (70) to allow the operator to perform an operation above the upper end of the support post (70), and a lift mechanism (90) that raises or lowers the work cage (10) suspended from the suspension frame (80) with a plurality of lanyards (91) to a work position.

An image processing method and system, a storage medium and a moving system are provided, and the image processing method includes: obtaining a 2D depth array D.sub.p having depth information of a target object; calculating to obtain a depth vector D=[d.sub.1, d.sub.2, d.sub.3, . . . , d.sub.l, . . . , d.sub.n], in which an element d.sub.i is an average value of elements of the i.sup.th row in the 2D depth array; calculating to obtain an edge determination vector D=[d.sub.1, d.sub.2, d.sub.3, . . . , d.sub.i, . . . , d.sub.n1], in which an element d.sub.i=|d.sub.id.sub.i+1|; calculating an average value d.sub.0=(|d.sub.2d.sub.1|+|d.sub.3d.sub.2|+ . . . +|d.sub.n1d.sub.n2|)/(n2); and comparing an absolute value |d.sub.id.sub.i+1| with d.sub.0 to identify an edge of the target object, in which in a situation where |d.sub.id.sub.i+1| is greater than d.sub.0, it is determined that the elements of the i.sup.th row in the 2D depth array D.sub.p correspond to the edge of the target object.

Disclosed are an imaging plan generation device, an imaging plan generation method, and a program that generate an imaging plan for efficiently imaging captured images for use in inspection of a bridge without omission. An imaging plan generation device (400) includes a space information acquisition unit (401) that acquires space information of a panel, a first decision unit (403) that decides a plurality of deck slab imaging positions and postures of a camera based on the space information of the panel, a second decision unit (405) that decides, based on the space information of the panel, a plurality of steel member imaging positions and postures of the camera in imaging a plurality of joint portions of steel members with the camera, and an imaging plan generation unit (407) that generates an imaging plan of a camera-equipped mobile robot based on the plurality of deck slab imaging positions and postures decided by the first decision unit and the plurality of steel member imaging positions and postures decided by the second decision unit.

A pier maintenance system and a structural maintenance system are provided. The pier maintenance system is configured to maintain elongate members of the pier (e.g. piles). The pier maintenance system includes a delivery module, configured to navigate between the elongate members; and a maintenance module, coupled to the delivery module, and configured to navigate along the elongate members, to maintain the pier.

A mobile platform carrying system is configured to be adjusted to remain level. The mobile platform carrying system includes a chassis, attached to a front axle assembly and a rear axle assembly. The front axle assembly includes a front axle housing through which a front axle telescoping portion extends. A first front wheel housing is joined to the front axle telescoping portion, and a first front actuator. The first front actuator is adapted to adjust a front linear position of the first front wheel housing relative to the chassis. A first front wheel is joined to the first front wheel housing with a first front hinge. The rear axle assembly is similarly arranged.

A connector for connecting a panel of a bridge platform or other scaffolding to an underlying cable for supporting the panel. First and second plates are hingedly joined. A member is attached to and extends from the first plate to a free end portion, wherein the member is adapted to be passed downwardly through a panel and cradle a cable passing below the panel then to be passed upwardly back through the opening then through an aperture in the second plate. A wedge is slidably receivable between ledges on the free end portion and the second plate for wedgedly retaining the member in the aperture. A member is attached to the second plate in a position such that it retains the wedge inseparable from the plates. The plates and wedge are inseparable from each other in each of latched and unlatched states.

An erected platform which contains parallel lines of trusses connected end-to-end and method of erecting thereof, as illustrated in FIGS. 20 to 23. Each truss has two sides for chords respectively, with apertures or eyelets at the ends. First and second other trusses for a pair of parallel lines respectively are connected by positioning a first other truss adjacent the decking laid on an existing platform portion. Apertures on first respective sides of the first other truss and one of the existing trusses are connected by a first pin and the first other truss swung into an end-to-end position with the one existing truss and a second pin inserted in apertures on second respective sides of the first other truss and the one existing truss. The first pin is removed and the first other truss swung out of the way so that the second other truss may be attached. The second other truss is positioned adjacent the existing decking and similarly connected end-to-end with the other existing truss. The first other truss is then swung back into position for end-to-end attachment to the one existing truss and the second pin re-inserted.