摘要:
A method essentially comprising a step of storing each plot mesh. Each plot mesh receiving plots sent thereto by detector means and retaining in memory at least the altitude of the highest plot and the number of plots neighboring said highest plot in said mesh. The altitude and the number of plots neighboring are updated each time a new plot is sent to the plot mesh. A step of rejecting plot meshes is presenting a number of neighboring plots that is less than a predetermined rejection threshold value. The rejection threshold value is a function of the position of the mesh relative to the detector means. A step is preparing the local terrain elevation database from the plot meshes (M(i,j)) that are not rejected.
摘要:
In a method of the invention for assisting the piloting of an aircraft, a guard curve (CGS) is determined as a function of the resources of the aircraft, the position of an obstacle (O) or a terrain point situated in front of the aircraft is measured by telemetry, the distance D between the guard curve and the obstacle (O) or the terrain point is calculated, and a pull-down order or a pull-up order is produced as a function of the distance D.
摘要:
The present invention relates to a maintenance method for a piece of equipment (2) of a vehicle (1) including an anti-vibration system (3). In the method, a device (10) determines a first number (D1) of hours of operation of said equipment (2) while said anti-vibration system (3) was operating in a normal mode of operation and a second number (D2) of hours of operation while said anti-vibration system (3) was operating in a degraded mode of operation. Said second number (D2) is then converted into a third number (D3) by applying a predetermined conversion relationship. Under such circumstances, action is taken on said equipment (2) when the sum of the first number (D1) plus the third number (D3) reaches a predetermined threshold (D0).
摘要:
The present invention relates to a method of flying safely and at low altitude in an aircraft, in which method unsafe relief (R0) of terrain is determined as is the position of at least one high point (4, 5) representing an obstacle (4′, 5′) overlying said unsafe relief (R0). A main volume (V0) is added to said unsafe relief (R0), the main volume being defined between a main volume base (2) placed on the unsafe relief (R0) and an envelope (1), thereby obtaining safe relief (R1) for overflying that contains at least said unsafe relief (R0) and said main volume (V0), said main volume base (2) having an area (2′) defined by a closed peripheral curve (3) resting on said unsafe relief (R0), said envelope (1) being generated using a moving segment (S) of predetermined length (L) extending from said high point (4, 5) to a second point (3′) moving along said peripheral curve (3).
摘要:
The invention relates to a method of determining an estimated speed of an aircraft relative to ground being overflown by the aircraft, in which use is made of the sum of an acceleration measurement of the aircraft plus a difference value, the difference value being obtained from observation data or signals relating to a region of the ground.
摘要:
The invention relates to a method of determining an estimated speed of an aircraft relative to ground being overflown by the aircraft, in which use is made of the sum of an acceleration measurement of the aircraft plus a difference value, the difference value being obtained from observation data or signals relating to a region of the ground.
摘要:
A method essentially comprising a step of storing each plot mesh. Each plot mesh receiving plots sent thereto by detector means and retaining in memory at least the altitude of the highest plot and the number of plots neighboring said highest plot in said mesh. The altitude and the number of plots neighboring are updated each time a new plot is sent to the plot mesh. A step of rejecting plot meshes is presenting a number of neighboring plots that is less than a predetermined rejection threshold value. The rejection threshold value is a function of the position of the mesh relative to the detector means. A step is preparing the local terrain elevation database from the plot meshes (M(i,j)) that are not rejected.
摘要:
A method of detecting at least one suspended threadlike object by telemetry, the object lying in the detection field of a telemeter on board a vehicle. The method wherein in step iii), for each vertical plane taken into consideration, and for each set of at least four candidate points close to the vertical plane in question, using the least squares method to calculate the values of three parameters a, b, and c of a catenary having an equation of the form: y=a cos h[(x−b)/a]+c the catenary containing the projections on the vertical plane of the points in the set under consideration; and determining that at least one suspended threadlike object is present as a function of the value of the correlation coefficient associated with said least squares method for all of the sets of at least four candidate points close to the vertical plane under consideration.
摘要翻译:一种通过遥测来检测至少一个悬挂的线状物体的方法,该物体位于车辆上的遥测仪的检测区域中。 对于考虑到的每个垂直平面的步骤iii),以及接近所讨论的垂直平面的每组至少四个候选点的方法,使用最小二乘法来计算三个参数a,b, 和c为具有以下形式的等式的悬链线:y = a cos h [(xb)/ a] + c在所考虑的集合中的点的垂直平面上包含投影的悬链线; 以及确定至少一个悬挂的线状物体作为与所述最小二乘法相关联的相关系数的值的函数,所述至少四个候选点的集合在靠近所考虑的垂直平面的情况下。
摘要:
The present invention relates to a method of flying safely and at low altitude in an aircraft, in which method unsafe relief (R0) of terrain is determined as is the position of at least one high point (4, 5) representing an obstacle (4′, 5′) overlying said unsafe relief (R0). A main volume (V0) is added to said unsafe relief (R0), the main volume being defined between a main volume base (2) placed on the unsafe relief (R0) and an envelope (1), thereby obtaining safe relief (R1) for overflying that contains at least said unsafe relief (R0) and said main volume (V0), said main volume base (2) having an area (2′) defined by a closed peripheral curve (3) resting on said unsafe relief (R0), said envelope (1) being generated using a moving segment (S) of predetermined length (L) extending from said high point (4, 5) to a second point (3′) moving along said peripheral curve (3).
摘要:
A method of detecting at least one suspended threadlike object by telemetry, the object lying in the detection field of a telemeter on board a vehicle. The method wherein in step iii), for each vertical plane taken into consideration, and for each set of at least four candidate points close to the vertical plane in question, using the least squares method to calculate the values of three parameters a, b, and c of a catenary having an equation of the form: y=a cos h[(x−b)/a]+c the catenary containing the projections on the vertical plane of the points in the set under consideration; and determining that at least one suspended threadlike object is present as a function of the value of the correlation coefficient associated with said least squares method for all of the sets of at least four candidate points close to the vertical plane under consideration.
摘要翻译:一种通过遥测来检测至少一个悬挂的线状物体的方法,该物体位于车辆上的遥测仪的检测区域中。 对于考虑到的每个垂直平面的步骤iii),以及接近所讨论的垂直平面的每组至少四个候选点的方法,使用最小二乘法来计算三个参数a,b, 和c为具有以下形式的等式的接触网:y = a cos h [(x-b)/ a] + c,在所考虑的集合中的点的垂直平面上包含投影的悬链线; 以及确定至少一个悬挂的线状物体作为与所述最小二乘法相关联的相关系数的值的函数,所述至少四个候选点的集合在靠近所考虑的垂直平面的情况下。