Abstract: The present invention is related to a construction machine, the construction machine including: a main pump; a swing motor operated by the main pump; a swing valve configured to control flow of the hydraulic oil by the main pump to supply the hydraulic oil to the swing motor and to control the flow of the hydraulic oil having been discharged from the swing motor; a hydraulic oil control valve unit configured to control the flow of the hydraulic oil according to a pressure of the hydraulic oil at opposite ends; a first accumulator configured to store the hydraulic oil when the swing motor is decelerated; a regeneration control valve provided between the hydraulic oil control valve unit and the first accumulator; and a controller configured to control the hydraulic oil control valve unit and the regeneration control valve by determining acceleration or deceleration of the swing motor.

Abstract: A device for generating a front image for heavy equipment is presented, which is configured to generate a combined front image including an object in an area obstructed by a visual field obstructing component by combining an image of a preset area in a front image of a second view to a front image of a first view. The presented device for generating a front image for heavy equipment generates a first front image and a second front image by photographing the front from the upper portion and lower portion of the heavy equipment, and generates a combined front image by combining a part of the second front image to a partial area of the first front image, so that the areas thereof located at a set distance forward from the front end of the visual field obstructing component coincide with each other.

Abstract: A control system for construction machinery includes an upper camera installed in a driver cabin of a rear vehicle body to photograph the front of the driver cabin, a lower camera installed in a front vehicle body rotatably connected to the rear vehicle body to photograph the front of the front vehicle body, an angle information detection portion configured to detect information on a refraction angle of the front vehicle body with respect to the rear vehicle body, an image processing device configured to synthesize first and second images captured from the upper and lower cameras, and configured to determine a position of a transparency processing area in the synthesized image according to the refraction angle information and transparency-process at least one of the first and second images in the transparency processing area, and a display device configured to display the synthesized image transparency-processed by the image processing device.

Abstract: A device for generating a front image for heavy equipment is presented, which is configured to generate a combined front image including an object in an area obstructed by a visual field obstructing component by combining an image of a preset area in a front image of a second view to a front image of a first view. The presented device for generating a front image for heavy equipment generates a first front image and a second front image by photographing the front from the upper portion and lower portion of the heavy equipment, and generates a combined front image by combining a part of the second front image to a partial area of the first front image, so that the areas thereof located at a set distance forward from the front end of the visual field obstructing component coincide with each other.

Abstract: In a method of making work plans for construction machinery, information of the construction machinery at a work site is obtained. The information of the construction machinery is received via a wireless communication. The information of the construction machinery is displayed on a display portion of a server. A work plan of the construction machinery is created on the display portion of the server by using the information of the construction machinery and information stored in the server. The work plan is transmitted to the construction machinery.

Abstract: A hydraulic system comprises: a hydraulic pump that includes an swash plate; an swash plate angle sensor for measuring the angle of the swash plate; an swash plate driving piston for moving the swash plate of the hydraulic pump in response to changes in pressure applied to a large diameter section; an swash plate control hydraulic line for supplying the large diameter section with a portion of the hydraulic oil discharged by the hydraulic pump; a control valve that controls the flow rate of the hydraulic oil that is following into and out of the large diameter section; an electro-proportional pressure reducing valve for producing pilot pressure that is to be transmitted to one side of the control valve; and a control device for controlling the electro-proportional pressure reducing valve according to an operation signal of an operation device and the angle information from the swash plate angle sensor.

Abstract: In a method of making work plans for construction machinery, information of the construction machinery at a work site is obtained. The information of the construction machinery is received via a wireless communication. The information of the construction machinery is displayed on a display portion of a server. A work plan of the construction machinery is created on the display portion of the server by using the information of the construction machinery and information stored in the server. The work plan is transmitted to the construction machinery.

Abstract: Embodiments of the present disclosure relate to a machine guidance program and an excavator using the same. The machine guidance program which assists an operator of an excavator including a bucket to operate is configured to display a guidance screen on a display device. The guidance screen includes: a front view; a first guide indicator which guides in which tilting direction the operator should operate; a side view; and a second guide indicator which guides whether the operator should operate in a dump direction or in a crowd direction.

Abstract: An embodiment of the present invention relates to construction machinery comprising: a first hydraulic pressure line which is connected to a main control valve and one side of a swing motor; a first valve arranged on the first hydraulic pressure line; a first pressure detection member which detects the pressure of the hydraulic oil passing through the first hydraulic pressure line between the first valve and the main control valve; a fourth pressure detection member which detects the pressure of the hydraulic oil passing through the first hydraulic pressure line between the swing motor and the first valve; and a control unit which calculates the flow rate of the hydraulic oil discharged from the swing motor on the basis of the pressure of the hydraulic oil detected by the first pressure detection member and the pressure of the hydraulic oil detected by the fourth pressure detection member.

Abstract: The present invention provides a construction machine, which includes a cabin in which a driver is seated, the construction machine including a ventilated seat having fans, an air conditioning device configured to adjust an internal temperature of the cabin, and ducts extending from the air conditioning device and configured to guide an air flow, in which the ducts branches to include a first duct extending toward an upper side of the cabin, and a second duct extending toward a rear side of the ventilated seat. Therefore, it is possible to improve a cooling effect that the driver actually feels.

Abstract: Disclosed is a construction machine including: an engine generating power; a pump generating hydraulic pressure by receiving power generated from the engine; a main control valve receiving signal oil from the pump; a key switch capable of turning on and off power of an electronic unit; an engine control unit that maintains operation of the engine for a predetermined time and then stops operation of the engine when the key switch is switched from an on-state, during which power of the electronic unit may be turned on, to an off-state; and a pilot cut-off valve for opening and closing the signal oil according to the state of the key switch, and an accident caused by the engine control unit may be prevented by the construction machine.

Abstract: In a method of registering a smart key for construction machinery, a first password is generated in a smart key module mounted in a construction machine. A user setting graphic interface through which a user can input a password, in the smart key module or a user terminal, is provided to the user. The password inputted by the user is compared with the first password in the smart key module to authenticate. An authentication code of a near smart key that is recognized by the smart key module is registered as a new registration authentication code when the inputted password is authenticated.

Abstract: An exemplary embodiment of the present disclosure relates to an apparatus providing drive guide information of a construction equipment includes: an information acquisition unit acquiring information generated according to a motion of the construction equipment; a storage unit storing an item defined for calculating a score for worker driving of the construction equipment and an equation for calculating the score for the item, and storing a guide phrase for each item and information on equipment setting change for each item; a control unit calculating the score for each item according to the information provided, and selecting an item which needs to be improved based on the calculated score for each item; and a display unit displaying a guide phrase matching an item selected according to an instruction of the control unit and information on equipment setting change matching the selected item at a predetermined time.

Abstract: Provided is a construction machine. The construction machine includes a boom cylinder driving a boom, a rotation motor rotating a rotary body, an arm cylinder driving an arm, a bucket cylinder driving a bucket, a first main pump supplying working fluid to the boom cylinder and discharging the working fluid in opposite directions, a second main pump supplying working fluid to the rotation motor and discharging the working fluid in opposite directions, and a third main pump supplying working fluid to the arm cylinder or the bucket cylinder.

Abstract: The present disclosure relates to a coupling structure of a construction machine having improved durability of a hinge and improved assembling properties by allowing an engine cover to be easily assembled to a main body regardless of an assembly order of a counterweight, the coupling structure having effects that since another side of a connection plate is positioned so as to be upwardly spaced apart from an upper portion of a counterweight by a height of a protruding support, vibration generated from the counterweight is not transmitted to another side of the connection plate, thereby improving durability of the hinge. In addition, since the connection plate is supported by the support, there is an effect that the engine cover may be easily coupled to the connection plate by using the hinge, regardless of the assembly order of the counterweight.

Abstract: The present disclosure relates to a user authentication method for construction equipment, capable of preventing theft of construction equipment. The user authentication method for construction equipment according to an embodiment of the present invention includes: a user authentication method for construction equipment includes: a user information registration step for registering a user identification information provided from a user device; a digital key issuance step for, upon request for use of the construction equipment from the user device, generating a digital key corresponding to the construction equipment and transmitting the generated digital key to the user device; and an equipment authentication step for allowing the use of the construction equipment when the user device having receive the digital key completes authentication of the identification information through the digital key.

Abstract: In a method of monitoring track tension in construction machinery, data on predetermined major factors for monitoring track tension are received. A machine learning algorithm is performed based on the data to determine a track tension state. Information on the track tension state is displayed.

Abstract: An oil level sensor cover according to an embodiment of the present disclosure may be mounted below an engine oil pan to protect an oil level sensor that measures an oil level. The oil level sensor cover may be formed with plates of predetermined sizes, including an upper surface and a lower surface opposite to the upper surface, wherein a plurality of seating portions and a plurality of hook are formed on the upper surface. An engine according to another embodiment of the present disclosure comprises the above-described oil level sensor cover according to an embodiment of the present disclosure, an engine oil fan, and an oil level sensor mounted below the engine oil fan to measure the oil level. The oil level sensor cover can be separated from or coupled to the oil level sensor without the use of a separate tool.

Abstract: An environment cognition system for construction machinery includes a first sensor installed on an upper surface of a cabin of the construction machinery to obtain shape information on a front ground, and a second senor installed on a lower surface of a boom of the construction machinery to obtain shape information data in an excavation area. The second sensor is installed in a region that does not overlap a trajectory of a circle drawn by an end of a bucket, with the arm folded as far as possible.